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September 17, 2014

Homework Help: Math: Statistics

Recent Homework Questions About Statistics

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statistics
Use the normal dist to approx the desired prob. Find the prob of getting at most 30 fives in 200 tosses of a fair 6 sided die
Friday, October 4, 2013 at 10:20am

statistics
An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 25.6 years of age. If the standard deviation is assumed to be 4.1 years, find the probability that a random sample of 30 U.S. women would show a mean age at ...
Friday, October 4, 2013 at 1:32am

Statistics
A package of self-sticking notepads contains 6 yellow, 6 blue, 6 green, and 6 pink notepads. An experiment consists of randomly selecting one of the notepads and recording its color. Find the probability that a green notepad is selected given that it is either blue or green. A...
Thursday, October 3, 2013 at 8:09pm

Statistics
In a survey conducted by researchers at the University of Wisconsin, subjects were asked the question "Have you ever used cocaine?" in one of three methods, anonymous survey, personal interview, or phone survey. The contingency table below shows the results of this ...
Wednesday, October 2, 2013 at 7:24pm

Statistics
In a survey conducted by researchers at the University of Wisconsin, subjects were asked the question "Have you ever used cocaine?" in one of three methods, anonymous survey, personal interview, or phone survey. The contingency table below shows the results of this ...
Wednesday, October 2, 2013 at 6:49pm

Statistics
In an Intro Stats class, 57% of students eat breakfast in the morning and 80% of students floss their teeth. Forty-six percent of students eat breakfast and also floss their teeth. What is the probability that a student from this class flosses his/her teeth given they eat ...
Tuesday, October 1, 2013 at 7:59pm

Statistics
The soccer team's shirts have arrived in a big box and people start grabbing them. The box contains 7 medium, 12 Large, and 11 extra-large shirts. What is the probability that the first 4 shirts are all extra large? I have been struggling with the problem for an hour and ...
Tuesday, October 1, 2013 at 7:06pm

College Statistics
Suppose we want to model the number of rats captured in a single trap in a day, where the average number caught is 5 (i.e. X ∼ Poi(5)). (a) What is the probability of catching 6 rats in one trap in a day? (b) What is the probability of catching 12 rats in 2 traps in a ...
Monday, September 30, 2013 at 9:09pm

College Statistics
For X ∼ Bin(n, p), show that E(X) = np and Var(X) = np(1 − p) Our book defines this as true, but I don't know how to actually prove it.
Monday, September 30, 2013 at 9:07pm

Statistics (Reiny)
1. A consumer organization estimates that 30% of the households in a particular community have one television set, 39% have two sets, and 20% have three or more sets. What is the probability that a household chosen at random does not have two sets? A) 0.39 B) 0.80 C) 0.61 D) 0...
Monday, September 30, 2013 at 7:51pm

Statistics
Ricardo's car rental offers five different types of vehicles, compact cars (CC), midsize cars (MC), sport utility vehicles (SUV), vans (V), and luxury cars (L). Historically, if a random individual comes to rent a vehicle, the following probabilities apply: P(CC) = 0.16 P(...
Monday, September 30, 2013 at 2:35pm

math
find an advertisement for a weight loss product either online or in the print media, the more unbelievable the claims, the better a. What data does it offer for its promised benefits? Does it offer any descriptive statistics or merely testimonials? if it offers descriptive ...
Monday, September 30, 2013 at 10:25am

Statistics
1. A human gene carries a certain disease from a mother to her child with a probability rate of 0.58. That is, there is a 58% chance that the child becomes infected with the disease. Suppose a female carrier of the gene has five children. Assume that the infections, or lack ...
Sunday, September 29, 2013 at 10:52pm

Statistics
1. In a certain game, the probability of getting a red outcome is 0.03. Find the probability of getting an outcome that is not red? The answer must be in a decimal. I put 0.97 as the answer ( 1-0.03=0.97) 2. The instructor in a Humanities class says that students have a 15% ...
Sunday, September 29, 2013 at 7:27pm

Probability and Statistics (Continuation)
Assume 10% of the engines manufactured on an assembly line are defective. If engines are randomly selected one at a time and tested. What is the probability that the third nondefective engine will be found a)on the fifth trial? b) on or before the fifth trial? MY answers: a) P...
Sunday, September 29, 2013 at 1:10pm

Probability and Statistics
Assume 10% of the engines manufactured on an assembly line are defective. If engines are randomly selected one at a time and tested. What is the probability that the third nondefective engine will be found a)on the fifth trial? b) on or before the fifth trial? MY answers: a) P...
Sunday, September 29, 2013 at 3:12am

Probability and Statistics
An oil prospector will drill a succession of holes in a given area to find a productive well. The probability that he is successful on a given trial is 0.2. a) What's the probability that that the third hole drilled is the first to yield a productive well? b) If the ...
Sunday, September 29, 2013 at 3:06am

statistics,math
Post a behavioral research situation that could use a Pearson coefficient research study and a chi square research study. Present the rationale for each selection. Be very specific in your presentation
Sunday, September 29, 2013 at 1:06am

Reading Honors
is this a good essay. please help me on words that will make the essay better, advice if any sentence is wrong. and anything that can make the essay sound more mature/professional than what it is, punctuation, capitalization, clarity, etc. A good argument is convincing, ...
Saturday, September 28, 2013 at 9:30am

statistics
A Social service agency plans to conduct a survey to determine the mean income of its clients. The director of the agency prefers that you measure the mean income very accurately, to within plus or minus $500. from a sample taken 2 years ago, you estimate that the standard ...
Friday, September 27, 2013 at 9:01pm

statistics
Calculate the difference between the means distribution parameters? where n1=25,n2=36, s2 1 = 50, s 2 2 = 72, M1= 100, & M2 = 105
Friday, September 27, 2013 at 8:06pm

statistics
. The average age at which a woman gets married in the U.S. is µ = 27 with a standard deviation of σ = 5.5. Use this information to answer the following questions. Show Your Work! A. What proportion marries at age 30 or more?
Friday, September 27, 2013 at 7:40pm

statistics
The typical amount of sleep per night for undergraduate college students has a bell shaped distribution with a mean of 7 and a standard deviation of 1.90 hours. Based on this distributional information we can conclude that at least 95 % of this population sleep ...
Friday, September 27, 2013 at 5:46pm

ms.sue please help!!!
Ms. Sue is this a good essay. please help me on words that will make the essay better, advice if any sentence is wrong. and anything that can make the essay sound more mature/professional than what it is, punctuation, capitalization, clarity, etc. A good argument is convincing...
Friday, September 27, 2013 at 5:24pm

statistics
An employee currently earning $13.65 per hour has been awarded a 3.5 merit raise. what is the employee hourly salary be with this increase.
Friday, September 27, 2013 at 3:30pm

statistics
Most Americans, 75% in fact, say frequent handwashing is the best way to fend off the flu. Despite that, when using public restrooms, women wash their hands only 67% of the time and men wash only 46% of the time. Of the adults using the public restroom at a large grocery chain...
Thursday, September 26, 2013 at 4:51pm

statistics - conditional probability
Event A has probability 0.9 of occurring. Event B has 0.2 chance of occurring if, and only if, event A has occurred. What is the overall probability that event B will occur? I'm so confused. This seems so simple, I'm not sure why I can't reason through it. They'...
Wednesday, September 25, 2013 at 10:20pm

statistics - conditional probability
Event A has probability 0.9 of occurring. Event B has 0.2 chance of occurring if, and only if, event A has occurred. What is the overall probability that event B will occur? I'm so confused. This seems so simple, I'm not sure why I can't reason through it. They'...
Wednesday, September 25, 2013 at 10:19pm

statistics
A set of final exam scores in an organic chemistry course was found to be normally distributed, with a mean of 73 and a standard deviation of 8. What is the probability of getting a score higher than 71 on this exam?
Tuesday, September 24, 2013 at 10:51pm

statistics
A popular retail store knows that the purchase amounts by its customers is a random variable that follows a normal distribution with a mean of $30 and a standard deviation of $9. What is the probability that a randomly selected customer will spend between $20 and $35 at this ...
Tuesday, September 24, 2013 at 10:47pm

statistics
air coin is flipped 20 times. a. Determine the probability that the coin comes up tails exactly 15 times. b. Find the probability that the coin comes up tails at least 15 times. c. Find the mean and standard deviation for the random variable X giving the number of tails in ...
Monday, September 23, 2013 at 9:19pm

statistics
suppose that grade point averages of undergraduate students at one university have a bell shaped distribution with a mean of 2.55 and a standard deviation of 0.43. Using the empirical rule, what percentage of students have grade point averages that are between 1.26 and 3.84
Monday, September 23, 2013 at 9:10pm

Statistics
Which of the following is not a source of caution in regression analysis between two variables? A) non-linear form. B) linear form. C) a lurking variable. D) an outlier. E) extrapolation. E?
Sunday, September 22, 2013 at 3:39pm

Statistics
Find the variance for the set of data: 24, 31, 16, 22,22.
Sunday, September 22, 2013 at 3:39pm

question
is it better to take physics or chemistry if taking both whats better to take 1st in sophomore year better to take ap statistics or precalculas for becoming an architect
Sunday, September 22, 2013 at 1:05pm

Statistics
2. A researcher hypothesized that the pulse rates of long-distance athletes differ from those of other athletes. He believed that the runners’ pulses would be slower. He obtained a random sample of 10 long-distance runners. He measured their resting pulses. Their pulses ...
Saturday, September 21, 2013 at 1:59pm

statistics
if anxiety scores were recorded as Z score or 1.10, is that higher than 35 in the current study?
Saturday, September 21, 2013 at 1:31pm

statistics
if a toaster ovens hav an average life expectancy of 9.5 years with a standard deviation of 4.75 years. what is the probability that a toaster oven will last twenty years or will fail in one year or less?
Saturday, September 21, 2013 at 12:36pm

Math
Part I: Statistical Measures Statistics is a very powerful topic that is used on a daily basis in many situations. For example, you may be interested in the age of the men who attend Silver’s Gym. You could not assume that all men are the same age. Thus, it would be an ...
Friday, September 20, 2013 at 8:10pm

statistics
supply function p = 15x-900 demand function p = 2x + 530 find the point of equilibrium
Friday, September 20, 2013 at 6:38pm

statistics
Most Americans, 67% in fact, say frequent handwashing is the best way to fend off the flu. Despite that, when using public restrooms, women wash their hands only 66% of the time and men wash only 43% of the time. Of the adults using the public restroom at a large grocery ...
Friday, September 20, 2013 at 6:31pm

Statistics
Determine the Null and Alternative Hypothesis for the following: A.) A company manufactures flares, they select 100 at random to determine if the flares last at least 3 hours on average. B.) A consumer group believes that a new sports coupe gets significantly less MPG than ...
Friday, September 20, 2013 at 1:28pm

Statistics- Multiple Choice Question
The investigators suspect that military men may not tell the truth about visiting a CSW. Some may say they did visit a CSW when they actually did not; others will say they did not visit a CSW when they actually did. Is this: A. Nondifferential misclassification of exposure B. ...
Thursday, September 19, 2013 at 9:50pm

Statistics (Please help!!!)
The investigators suspect that military men may not tell the truth about visiting a CSW. Some may say they did visit a CSW when they actually did not; others will say they did not visit a CSW when they actually did. Is this: A. Nondifferential misclassification of exposure B. ...
Thursday, September 19, 2013 at 9:29pm

Statistics
A golf ball is dropped from 15 different heights (in inches) and the height of the bounce is recorded (in inches.) The regression analysis gives the model y-hat = -0.4 + 0.70 (drop height) where y-hat is the predicted bounce height of the golf ball. A golf ball dropped from 71...
Wednesday, September 18, 2013 at 7:40pm

Statistics
A carload of stone taken from a quarry by the plug-and-feather method contains pieces of stone have a mean weight of 1,500 pounds and a total weight of 36,000 pounds. Another carload of stone produced by the explosive method (where stone is blasted into random shapes by ...
Wednesday, September 18, 2013 at 6:21pm

question
im a freshmen and i wan to become a architect what courses should i take in highschool and is it beter to take statistics or precalculas
Tuesday, September 17, 2013 at 11:21pm

statistics
The international bottled water association says that Americans on the average drink 4.6 (8oz) servings of water a day. Assume that the number of 8oz. servings of water is approximately normally distributed with a standard deviation of 1.8 servings what proportion of Americans...
Tuesday, September 17, 2013 at 9:26pm

Statistics
If someone makes random guesses for each NCAA Basketball Tournament game, what is the probability of picking the winner in each game?
Tuesday, September 17, 2013 at 3:54pm

statistics
Based on published real estate research, 65% of homes for sale have garages, 20% have swimming pools, and 18% have both features. i. Given that a home for sale has a garage, what’s the probability that it also has a pool
Monday, September 16, 2013 at 6:08pm

statistics
You and your friend decide to get your cars inspected. You are informed that 70% of cars pass inspection. If the event of your car’s passing is independent of your friend’s car: iii. What is the probability that both of the cars pass inspection (6 points)? a. 60% b. ...
Monday, September 16, 2013 at 5:32pm

statistics
Suppose scores on the mathematics section of the SAT follow a normal distribution with mean 540 and standard deviation 120. ACT math scores are normally distributed with a mean of 18 and a standard deviation of 8. What score on the ACT is equivalent to a score of 750 on the ...
Monday, September 16, 2013 at 1:46pm

statistics
Suppose scores on the mathematics section of the SAT follow a normal distribution with mean 540 and standard deviation 120. ACT math scores are normally distributed with a mean of 18 and a standard deviation of 8. What score on the ACT is equivalent to a score of 750 on the SAT
Sunday, September 15, 2013 at 11:07pm

Statistics
The annual snowfall in a town can be represented by the Normal model N(46, 6.8). In about 2.5% of the years, the annual snowfall in this town will exceed: A) 46 inches B) 39.2 inches C) 52.8 inches D) 59.6 inches E) 66.4 inches I don't know how to set this problem up to ...
Sunday, September 15, 2013 at 4:26pm

Statistics
Here's the five- number summary for the distribution of cigarette taxes (in cents) among the 50 states and Washington, D.C. in the United States. Min. = 2.5, Q1= 36, Median = 60, Q3= 100, Max. = 205 About what proportion of the states have cigarette taxes (i) greater than ...
Saturday, September 14, 2013 at 8:21am

STATISTICS
TRUE OR FALSE? Simple regression cannot be applied when r of two variables is very low.
Friday, September 13, 2013 at 2:22pm

Statistics
I have no idea on how to answer this question... "Use technology or a standard normal distribution table to find the area to the left of z=1.58. Do I plug in 1.58 in my calculator to find the answer?
Friday, September 13, 2013 at 10:54am

Statistics
I have no idea on how to answer this question... "Use technology or a standard normal distribution table to find the area to the left of z=1.58. Do I plug in 1.58 in my calculator to find the answer?
Friday, September 13, 2013 at 10:46am

statistics
A sample of 106 students, the researchers reported the following statistics...mean= 13.2 s=19.5 Explain why the distribution for these 106 students cannot be symmetric and given this, what % of 106 students fall within the x+/-2s? I understand it cannot be symmetric b/c the ...
Friday, September 13, 2013 at 12:24am

statistics
First graders who misbehave in school may be more likely to be regular smokers as young adults according to a new study presented in the July 2004 issue of the American Journal of Epidemiology. After following a group of U.S. first graders for 15 years, it was found that among...
Thursday, September 12, 2013 at 6:51pm

Statistics
Emissions of sulfur dioxide by industry set off chemical changes in the atmosphere that result in "acid rain." The acidity of liquids is measured by pH on a scale of 0 to 14. Distilled water has pH 7.0, and lower pH values indicate acidity. Normal rain is somewhat ...
Tuesday, September 10, 2013 at 6:55pm

MATH
A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative ability. For the verbal ability test, the mean for people in general is 50 and the standard deviation is 20. For the quantitative ability, the mean for people in general is 0 and the standard ...
Monday, September 9, 2013 at 5:29pm

statistics
"suppose that IQ scores have a bell-shaped distribution with a mean of 97 and standard deviation of 17.Using empirical rule, what percentage of IQ score are less than 46?"
Sunday, September 8, 2013 at 11:59pm

Statistics
The owner of the Finer Diner submitted a proposal to you in hopes of selling the business to you. His asking price is $250,000. Your financial institution advises that your monthly payment to finance that amount would be $1850.00. This is in addition to other business expenses...
Sunday, September 8, 2013 at 7:27pm

statistics
the life spans of three randomly selected tires are 31,400 miles, 40,600 miles and 36,000 miles. Using the empirical rule, find the percentile that corresponds to each life span.
Sunday, September 8, 2013 at 4:58pm

Statistics / Business
According to the National Humane Society, "Stray Cost" or the cost of the care and feeding for a stray dog is $419.00 per year. This amount does not include veterinarian care, but only food, water and shelter. It was found that the standard deviation of this "...
Sunday, September 8, 2013 at 2:27pm

statistics
P(z < -1.5 or z > 2.50) =
Saturday, September 7, 2013 at 3:39pm

STATISTICS
Researchers asked questions in 1001 randomly selected adults in Russia. We found a statistically significant, strong positive correlation between income and the number of recycling bins filled their houses per week (r = 0,77). Choose the best interpretation of the result. &...
Friday, September 6, 2013 at 6:19am

STATISTICS
True or False? A researcher is interested in studying whether there is a correlation of IQ with health. For this purpose he selected a sample of 261 people and asked them to complete two questionnaires: one for IQ and one for health. After evaluating the questionnaires each ...
Friday, September 6, 2013 at 6:15am

Statistics (Please help!!!)
Are there tables comparing and contrasting the following or how would you write these up? 1. Ecological Studies and Cross-Sectional Studies 2. Case control studies and Cohort studies 3. Measurement bias (aka information bias) and selection bias 4. Nondifferential ...
Friday, September 6, 2013 at 4:46am

Statistics
The average life of Canadian women is 73.75 years and the standard deviation of the women's life expectancy in Canada is 6.5 years. Using the Chebyshev's theorem, determine the minimum percentage of women in Canada whose life expectancy is between 64 and 83.5 years.
Friday, September 6, 2013 at 12:39am

statistics
A car dealer is using the number of years customers have owned their vehicles to predict how long it will be before they elect to replace them. The correlation between the two is rxy = -.723 (the longer they have owned their present vehicles, the more quickly they are expected...
Thursday, September 5, 2013 at 5:23pm

Statistics (Please help!!!)
Here is the question: If gene frequencies are in equilibrium, the genotypes, AA, Aa, and aa occur in a population with frequencies (1-0)^2, 20 (1-0), and 0^2. Plato et al.published the following data on haptoglobin type in a sample of 190 people: Hp1-1 = 10 Hp1-2 = 68 Hp2-2 = ...
Wednesday, September 4, 2013 at 8:56pm

Statistics (Please help!!!)
The following table gives the number of deaths due to accidental falls for each month during 1970. Is there any evidence for a departure from uniformity in the rate over time? That is, is there a seasonal pattern to this death rate? If so, describe its pattern and speculate as...
Wednesday, September 4, 2013 at 8:48pm

Statistics
A population has µ=100 and õ=20. If you select a single score from this population, on the average, how close would it be to the population mean? Explain your answer
Monday, September 2, 2013 at 10:11pm

statistics
7) A final exam in Statistics has a mean of 73 with a standard deviation of 7.73. Assume that a random sample of 24 students is selected and the mean test score of the sample is computed. What percentage of sample means are less than 70?
Sunday, September 1, 2013 at 12:25am

Statistics
Going to the movies tonight with one friend. Is it more beneficial for me to pay for the tickets or food? Please explain your reasoning
Saturday, August 31, 2013 at 12:51pm

Statistics
1. A pie chart can not be used for a frequency distribution with overlapping classes. A) True B) False True?
Friday, August 30, 2013 at 3:55pm

STATS
A researcher conducted a survey on a sample of 2000 college-students in order to examine the relationship between academic achievement and procrastination of studying. Using several indicators and plots of the descriptive statistics, found that in the data were many outlier ...
Friday, August 30, 2013 at 9:34am

Statistics
A researcher wants to study the effect of gender on mathematical ability of lyceum children. From the data gathered tried to construct a scatter diagram. He did not succeed to make it though. Why?   a. Had not collected enough data. b. He did not know how to construct it...
Friday, August 30, 2013 at 7:29am

STATISTICS
Which of the following correlation coefficients is higher? a. -0.68 b. 0.60 c. 0.68 d. a and c e. None of the above a and c right?
Friday, August 30, 2013 at 7:19am

Statistics
The scatter diagram shows: a. The frequency with which each value occurs in the data. b The values ​​of a variable designed in comparison with the values ​​of a second variable. c. The mean data sets. d. The percentage of data belonging to different ...
Friday, August 30, 2013 at 7:19am

accounting statistics
Find the balance at the end of 6 years of $5000 investment in an account with a nominal annual rate of interest of 2.5% compounded quarterly over the first two years and then grows according to nominal annual rate of discount of 6% convertible monthly over the remaining 4 ...
Thursday, August 29, 2013 at 7:04pm

Statistics Ms. Sue
Thank you Ms. Sue for the answer. I just wanted to know how you arrived at that $31000, because I have a number of problems like that one. Thank you. Mary
Wednesday, August 28, 2013 at 7:22pm

Statistics
linear correlation between the number of years in college versus average pay. average pay= 1,000 + 15,000x where x is the number of years in college. What would your average pay be if you were in college 2 years based on the model?
Wednesday, August 28, 2013 at 6:52pm

Statistics
A study in England attempted to determine the "right" method for teaching mathematics. A random sample of 248 students was chosen from the school at large. The students were randomly assigned to one of two classes. At the beginning of the research, the students had ...
Wednesday, August 28, 2013 at 6:08pm

Statistics
linear correlation between the number of years in college versus average pay. average pay= 1,000 + 15,000x where x is the number of years in college. What would your average pay be if you were in college 2 years based on the model?
Wednesday, August 28, 2013 at 5:06pm

Statistics
I am respectfully requesting help with the following assignment. I am struggling in this chapter of statistics... Define the term sample? A) A sample is a numeric characteristic of a sample B) A sample is a numeric characteristic of a population C) A sample is the entire ...
Monday, August 26, 2013 at 2:08pm

statistics
1.What’s the most appropriate procedure for evaluating the relationship between tenure and divorce? 2.What is the correlation and how can it be interpreted in terms of magnitude, direction and practical importance? 3.How much of whether executives have been divorced can ...
Sunday, August 25, 2013 at 11:47pm

Intro to Healthcare Statistics
Discuss how statistics are generated and how statistical information is used by healthcare organizations. Explore the NC State Center for Health Statistics at the following website and discuss at least two types of statistic health information that NC collects.
Sunday, August 25, 2013 at 7:29pm

Statistics
A statistician believes that in her town each child born has a 50% chance of being a girl, independently of all other children. There are 281 three-child families in her town; 39 of these families have no girls, 94 have one girl, 115 have two girls, and the remaining 33 have ...
Sunday, August 25, 2013 at 8:45am

statistics
Use the following scenario to answer the next 5 questions. Millions of Americans are subjected to drug testing in the workplace. The tests are not always reliable. A false positive rate of 5% is considered to be a conservative estimate. Suppose that there are 20 employees in ...
Saturday, August 24, 2013 at 7:10pm

Statistics
The next three questions refer to the following situation. Data from previous years reveal that the distribution if first exam scores in an introductory statistics class is approximately normal with a mean of 72 and a standard deviation of 12. 16) Given that the passing score ...
Saturday, August 24, 2013 at 6:47pm

Statistics
A statistician analyzing a randomized controlled experiment has tested Null: The treatment does nothing. Alternative: The treatment does something. using a 4% cutoff for P-values. The P-value of the test turns out to be about 1.8%. 1. The conclusion of the test is -The ...
Saturday, August 24, 2013 at 6:08am

statistics
Researchers conducted a survey of parents of 66 kindergarten children. The parents were asked whether they played games with their children. The parents were divided into two groups: working class and middle class. The researchers wanted to know if there was an association ...
Friday, August 23, 2013 at 9:08pm

Statistics
A simple random sample of cars in a city was categorized according to fuel type and place of manufacture. domestic foreign gasoline 146 191 diesel 18 26 gasoline/ 51 79 electricity hybrid 1. If the two variables were independent, the expected number of foreign gas/electric ...
Wednesday, August 21, 2013 at 4:22pm

Statistics
According to a genetics model, plants of a particular species occur in the categories A, B, C, and D, in the ratio 9:3:3:1. The categories of different plants are mutually independent. At a lab that grows these plants, 218 are in Category A, 69 in Category B, 84 in Category C...
Wednesday, August 21, 2013 at 4:16pm

Statistics
According to DeVeaux/Velleman, the best way to succeed in the study of statistics is to memorize definitions and learn equations? True or False I chose True
Wednesday, August 21, 2013 at 4:09pm

Statistics
Is GPA a quantitative or categorical variable? I think it is quantitative because it consists of numbers...
Wednesday, August 21, 2013 at 3:54pm

Statistics
A simple random sample of cars in a city was categorized according to fuel type and place of manufacture. domestic foreign gasoline 146 191 diesel 18 26 hybrid 51 79 Are place of manufacture and fuel type independent? If the two variables were independent, the chance that a ...
Saturday, August 17, 2013 at 9:19am

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