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March 2, 2015

March 2, 2015

Post a New Question | Current Questions

**college statistics**

I am having a bit of trouble with the top half of the questions. I have an answer below for questions 5-10, is there anyway you can check those answers and help me with the rest I am having trouble with. Thank you. 1. The area to the right of 1.93 under Student's t-curve ...
*Thursday, July 18, 2013 at 12:10pm*

**college statistics**

I am having a bit of trouble with some of the questions. Some of the ones I put below have an answer, is there anyway you can check the answer and help me with the rest I am having trouble with. Your sociology teacher claims that 60 percent of American males are married. You ...
*Thursday, July 18, 2013 at 11:58am*

**college chemistry**

I was wonder what bromine/glacial acetic acid solution is used for during the bromination of acetanilide reaction
*Wednesday, July 17, 2013 at 10:01pm*

**Calculus**

In a study conducted by a certain country's Economic Development Board, it was found that the Lorentz curve for the distribution of income of college teachers was described by the function f(x) = 13/14x^2 + 1\14x and that of lawyers by the function g(x) = 5\7x^4 + 2\7x (a...
*Wednesday, July 17, 2013 at 7:08pm*

**Statistics**

Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students is similar to or different from college ...
*Tuesday, July 16, 2013 at 6:19am*

**college trig**

find the radius of a pulley if rotating the pulley 108.03 degrees raises the pulley 37.3mm
*Monday, July 15, 2013 at 1:34pm*

**Statistics Help !! **

Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students is similar to or different from college ...
*Sunday, July 14, 2013 at 1:03am*

**Psychology**

I need someone to review my five answers. Inform me if I am correct with my choices as well as correct me if I answered any of them wrong. Thank you! 1) If one wishes to become a professional counselor and has completed the educational requirements and achieved certification ...
*Saturday, July 13, 2013 at 4:23pm*

**College Algebra**

Find an equation that has the given solutions. (There are many correct answers.) -1/6, -8/9
*Saturday, July 13, 2013 at 2:54pm*

**College Physics**

A 7 kg mass hangs on a 10 meter long weightless cord. To the nearest cm, what should the new length of the pendulum be in order that the new frequency be 1.8 times its current value? The correct answer is 309 but I got 250. Heres what I did.. (1/2pi)(sqrt g/L2) = (2/2pi)(sqrt ...
*Saturday, July 13, 2013 at 2:29pm*

**College Physics**

7 Moles of a gas initially at temperature 300 K is compressed adiabatically from a volume of 1000 cm3 to a volume of 316 cm3. To the nearest tenth of a kJ what is the work done by the piston? (It is a monatomic ideal gas.) I have W = (3/2)nRT1(V1^(gamma-1) V2^(1-gamma) ...
*Saturday, July 13, 2013 at 2:18pm*

**College Algebra**

Find all solutions of the equation. Check your solutions in the original equation. (Enter your answers from smallest to largest. Enter NONE in any unused answer blanks.) 16t^2/3 + 40t^1/3 + 25 = 0
*Saturday, July 13, 2013 at 2:07pm*

**College Algebra**

A family drove 1080 miles to their vacation lodge. Because of increased traffic density, their average speed on the return trip was decreased by 6 miles per hour and the trip took 2.5 hours longer. Determine their average speed on the way to the lodge.
*Saturday, July 13, 2013 at 12:20pm*

**College Algebra**

10x^2(x-8)^1/3 + 15x(x-8)^4/3
*Saturday, July 13, 2013 at 12:10am*

**college stats**

Again sorry for all the questions. please help, I am not good at stats and find these questions very difficult. I would appreciate an explanation if possible. 1.What is the sample average? 2.What is the SD of the box? 3.What is the number of draws from the box (the sample size...
*Friday, July 12, 2013 at 6:36pm*

**college stats**

Sorry for all the questions, I really need help and an explanation so I can fully understand. I really appreciate everything. Thank you. In a random sample of 519 judges, it was found that 285 had an introvert personality type. Construct a 95% confidence interval for the ...
*Friday, July 12, 2013 at 6:21pm*

**College stats **

Please help, I would appreciate an explanation on how you got the answer so I can understand it, being that I am so confused. The Denver Post stated that 80% of all new products introduced in grocery stores fail (are taken off the market) within 2 years. A grocery store chain ...
*Friday, July 12, 2013 at 6:16pm*

**College Chemistry**

Based on a Kc value of 0.140 and the data table given, what are the equilibrium concentrations of XY, X, and Y, respectively?
*Friday, July 12, 2013 at 5:39pm*

**Calculus**

Four hundred students attended the dedication ceremony of a new building on a college campus. The president of the traditionally female college announced a new expansion program which included plans to make the college coeducational. The number of students who learned of the ...
*Friday, July 12, 2013 at 3:02pm*

**college algebra**

if the altitude and the base of a triangle are each increased by 4 inches the area of the triangle will be increased by 42 square inches. if the altitude is increased by 3 inches and the base is decreased by 2 inches the area will be increased by 5 square inches. find the base...
*Friday, July 12, 2013 at 5:59am*

**college stats **

help please!!! 1. The average number of bumped passengers per day on FliRite Airlines is 2.47 with a standard deviation of 1.75. For a random sample of 40 days, what is the chance the average number of bumped passengers in the sample is between 2 and 2.75? a. About 91% b. ...
*Friday, July 12, 2013 at 12:57am*

**college stats **

I am having a lot of trouble with these questions can anyone help me please. 2. On September 2, 2004, a Dan Jones poll based on a random sample of 408 Salt Lake County residents reported that 26% of the respondents thought that Mayor Nancy Workman should resign. Find a 95% ...
*Friday, July 12, 2013 at 12:54am*

**stats college**

Which of the following confidence intervals will be the widest? a. 90 percent b. 95 percent c. 80 percent d. 98 percent
*Friday, July 12, 2013 at 12:52am*

**College Algebra (Urgent)**

The demand equation for a product is p = 60 – 0.0004x, where p is the price per unit and x is the number of units sold. The total revenue for selling x units is shown below. Revenue = xp = x(40 – 0.0004x) How many units must be sold to produce a revenue of $260,000...
*Wednesday, July 10, 2013 at 10:45pm*

**College 103 Chem**

How many grams of Sodium Phosphate would you need to make 225ml of 8.00M of stock solution? Thank you
*Wednesday, July 10, 2013 at 9:33pm*

**statistics**

Miller (2008) examined the energy drink consumption of college undergraduates and found that males use energy drinks significantly more often than females. To further investigate this phenomenon, suppose a researcher selects a random sample of n=36 male undergraduates and a ...
*Wednesday, July 10, 2013 at 3:02am*

**College Algebra**

Use the position equation given below, where s represents the height of the object (in feet), v0 represents the initial velocity of the object (in feet per second), s0 represents the initial height of the object (in feet), and t represents the time (in seconds), as the model ...
*Tuesday, July 9, 2013 at 11:52pm*

**College Algebra**

A rancher has 100 meters of fencing to enclose two adjacent rectangular corrals (see figure). The rancher wants the enclosed area to be 374 square meters. What dimensions should the rancher use to obtain this area? (Round your answers to 2 decimal places. Enter the smaller ...
*Tuesday, July 9, 2013 at 11:51pm*

**statistics**

Steven collected data from 20 college students on their emotional responses to classical music. Students listened to two 30-second segments from “The Collection from the Best of Classical Music.” After listening to a segment, the students rated it on a scale from 1 ...
*Tuesday, July 9, 2013 at 9:12pm*

**College Chemistry**

Calculate the pH at the equivalence point if 25.00 mL of 0.010M barbituric acid (HC4H3N2O3) is titrated with 0.020M NaOH. (Ka barbituric acid = 1.0 x 10^-5)
*Tuesday, July 9, 2013 at 2:03pm*

**College Physics**

1. In a region of two-dimensional space, there are three fixed charges: +1 mC at (0, 0), −2 mC at (18 mm, -3 mm), and +3 mC at (-8 mm, 12 mm). What is the net force on the −2-mC charge? Find the magnitude and direction (counterclockwise from the x-axis).
*Tuesday, July 9, 2013 at 1:46pm*

**Statistics - Help!**

I really really need help with this. Can someone please look at it and let me know. At 100 college campuses, 1200 full-time undergraduate students were surveyed on their credit card usage. Among juniors, 65% reported that they didn't have a credit card in their own name, ...
*Sunday, July 7, 2013 at 9:33pm*

**Statistics**

At 100 college campuses, 1200 full-time undergraduate students were surveyed on their credit card usage. Among juniors, 65% reported that they didn't have a credit card in their own name, and 23% reported that they had at least one credit card in their own name and they ...
*Sunday, July 7, 2013 at 3:13pm*

**venns diagrams**

From a survey of 100 college students, a marketing research company found that 50 students owned iPods, 50 owned cars, and 20 owned both cars and iPods.
*Sunday, July 7, 2013 at 2:16pm*

**college algebra **

The following rational function describes blood concentration of a certain drug taken via IV over time: f(x)=x+1/x Find: a.the horizontal or oblique asymptote(s), if any, b.the vertical asymptote(s),if any, c. describe their possible meanings.
*Sunday, July 7, 2013 at 11:58am*

**College Algebra**

1 -1 -1 1 2 0 1 -3 -7 0 3 0 -2 2 10 6 2 4 5 9 -3Row1 + Row3 -6Row1 + Row4 How do I work this using a calculator I get so confused and I don't know where to go in order to input info.
*Saturday, July 6, 2013 at 10:46pm*

**College Algebra**

A pharmaceutical salesperson receives a monthly salary of $2480 plus a commission of 7% of sales. Write a linear equation for the salesperson's monthly wage W in terms of sales S. W(S) =
*Friday, July 5, 2013 at 4:36pm*

**graduate statistics**

Does computer-assisted instruction help community college health students with reading difficulties to learn reading skills at a faster than normal rate? A researcher arranged for one of these students to have access to a set of computer-learning programs instead of the normal...
*Wednesday, July 3, 2013 at 10:18am*

**curriculum content**

which one of the following schools is specifically intended for gifted and college-prep students ?
*Tuesday, July 2, 2013 at 5:11pm*

**Stats**

The incomes in a certain lg. population of college teachers have a normal distribution with a mean of $35,000 and st. dev. of $5000. Four teachers are randomly selected. What is the probability their average salary will exceed $40,000?
*Tuesday, July 2, 2013 at 2:59pm*

**psy/315**

A social psychologist asked 15 college students how many times they “fell in love” before they were 11 years old. The numbers of times were as follows: 2, 0, 6, 0, 3, 1, 0, 4, 9, 0, 5, 6, 1, 0, 2 Make (a) a frequency table and (b) a histogram. Then (c) describe the ...
*Monday, July 1, 2013 at 3:07pm*

**college algebra: probability and statistics**

You roll a single die once. What is the probability you will roll an odd number or an even number?
*Sunday, June 30, 2013 at 3:58pm*

**College Math**

Brandywine Homecare, a not for hire business, had revenues of $12 million in 2011. Expenses other than depreciation totaled 75 percent of revenues, and depreciation expense was $1.5 million. All revenues were collected in cash during the yar and all expenses other than ...
*Sunday, June 30, 2013 at 3:21pm*

**Writing**

This is the SAT essay practice. I wrote this in 25 minutes. Please give me feedback and make corrections. Grade me based on a scale of 1-6 ( 1 being poor and 6 being superior). "Only those who dare to fail greatly can ever achieve greatly." - Robert Francis Kennedy ...
*Friday, June 28, 2013 at 1:03am*

**Government (Check Answers)**

1. What is the procedure of voter identification intended to help prevent fraudulent voting and keep the process organized? A) political socialization B) registration C) gerrymandering D) precinct divisions E) franchising 2. What do you call all the persons entitled to vote in...
*Thursday, June 27, 2013 at 6:16pm*

**College Algebra**

Can someone tell me if I have this one correct. log_1/2x 2+log_1/2x the relationship is a shift of 1 unit horizontally
*Thursday, June 27, 2013 at 1:07pm*

**College Algebra**

what is the equivalent logarithmic form of 6^z=244
*Wednesday, June 26, 2013 at 11:12pm*

**College Algebra**

can someone tell me if I am correct graph y1=(1/3)^x and y2= (1/3)^x+2 the relationships between the two graphs is they are separated horizontally by 2 units
*Wednesday, June 26, 2013 at 2:50pm*

**College Algebra**

I am new to this graphing calculator. I input y=5^x and y=(5^x)-3 It is graphed with tables showing x=-3 y1=-374/125 and y2=1/125 x=-2 y1=-74/25 y2=1/25 my question is what is the relationship between the graphs. I am unclear on what the question is asking
*Wednesday, June 26, 2013 at 2:02pm*

**Statistics**

A college admissions officer takes a simple random sample of 103 entering freshmen and computes their mean mathematics SAT score to be 493. Assume the population standard deviation is 112. What is the lower bound of the 99% confidence interval? Round your answer to the nearest...
*Wednesday, June 26, 2013 at 9:30am*

**college physics**

an atwood machine is constructed by mounting a well-lubricated pulley (not necessarily a ring/disc), whose radius is 6.00cm on an axle and passing a rope over the pulley. Each end of the rope is attached to a different mass of 3.0 kg and 2.0kg so they both hang vertically. ...
*Tuesday, June 25, 2013 at 9:11pm*

**College Algebra**

how do I find a 4th degree polynomial that has zeros; i,3i with f(-1)=60 I know the conjucants are -i and -3i (x-i)(x-3i) (x+i)(x=3i)
*Monday, June 24, 2013 at 3:01am*

**math check**

Consider the approximately normal population of heights of male college students with mean ì = 69 inches and standard deviation of ó = 4.6 inches. A random sample of 25 heights is obtained. (b) Find the proportion of male college students whose height is greater ...
*Saturday, June 22, 2013 at 10:36pm*

**Stats**

1. In a study of caffeine and stress, college students indicate how many cups of coffee they drink per day and their stress level on a scale of 1-10. The data appear below. Number of Cups of Coffee Stress Level 3 5 2 3 4 3 6 9 5 4 1 2 7 10 3 5 = 3.88 X= 5.13 s = 2.03 s = 2.90 ...
*Saturday, June 22, 2013 at 10:55am*

**math**

Varsity Press, a publisher of college textbooks, received a $70,000 promissory note at 12% ordinary interest for 60 days from one of its customers, Reader’s Choice Bookstores. After 20 days, Varsity Press discounted the note at the Grove Isle Bank at a discount rate of 14...
*Saturday, June 22, 2013 at 10:19am*

**math check**

While writing an article on the high cost of college education, a reporter took a random sample of the cost of new textbooks for a semester. The random variable x is the cost of one book. Her sample data can be summarized by the following. (Give your answers correct to two ...
*Friday, June 21, 2013 at 9:17pm*

**statistics**

If a teacher wants to test her belief that more than 5 students in college classes typically receive A as a grade, she'll perform? a. two tailed testing of a mean b. two tail testing of a proportion c. one tail testing of a proportion d. one tail testing of a mean I choose...
*Friday, June 21, 2013 at 6:03pm*

**contemporary math**

Varsity Press, a publisher of college textbooks, received a $70,000 promissory note at 12% ordinary interest for 60 days from one of its customers, Reader’s Choice Bookstores. After 20 days, Varsity Press discounted the note at the Grove Isle Bank at a discount rate of 14...
*Friday, June 21, 2013 at 4:41pm*

**Math**

Consider the approximately normal population of heights of male college students with mean ì = 69 inches and standard deviation of ó = 4.6 inches. A random sample of 25 heights is obtained. (b) Find the proportion of male college students whose height is greater ...
*Friday, June 21, 2013 at 9:33am*

**College Algebra**

20. Growth of an Account If Russ (see Exercise 19) chooses the plan with continuous compounding, how long will it take for his $60,000 to grow to $80,000? 3. (1/8) to the 2x-3= 16 to the x +1 13. e to the 4x= 4 to the x-2 15. ln (x-4) ln 3= ln(1/5) to the x power 20. Tripling ...
*Thursday, June 20, 2013 at 5:14pm*

**College Algebra**

Please help me ASAP!!!!!!!!!!!! I did the work on most of these problems but I am still confused please help. 19. Comparing Investments Russ McClelland, who is self-employed, wants to invest $60,000 in a pension plan. One investment offers 7% compounded quarterly. Another ...
*Thursday, June 20, 2013 at 5:07pm*

**math**

R. H. Bruskin Associates Market Research found that 30% of Americans do not think that having a college education is important to succeed in the business world. If a random sample of five Americans is s selected, find these probabilities. (a) Exactly two people will agree with...
*Thursday, June 20, 2013 at 11:42am*

**Math check**

While writing an article on the high cost of college education, a reporter took a random sample of the cost of new textbooks for a semester. The random variable x is the cost of one book. Her sample data can be summarized by the following. (Give your answers correct to two ...
*Wednesday, June 19, 2013 at 11:19pm*

**Business Math**

Varsity Press, a publisher of college textbooks, received a $70,000 promissory note at 12% ordinary interest for 60 days from one of its customers, Reader’s Choice Bookstores. After 20 days, Varsity Press discounted the note at the Grove Isle Bank at a discount rate of 14...
*Wednesday, June 19, 2013 at 9:13pm*

**College Accounting 211**

A company's predetermined overhead rate is $19.00 per direct labor hour and its direct labor wage rate is $16.00 per hour. Job A100 direct maerials cost is $280 and Direct Labor $240. 1. What is the total manufacturing cost assigned to Job A100? 2. If Job A100 consists of ...
*Wednesday, June 19, 2013 at 6:54pm*

**College Accounting 211**

A Corporation uses a predetermined overhead rate of $23.90 per direct labor hour. This predetermined rate was based on a cost formula that estmated $286,8000 of total manufacturing overhead for an estimated activity level of 12,000 direct labor hours. The company incurred ...
*Wednesday, June 19, 2013 at 6:01pm*

**writing process part 1 **

I need this paragraph proof read if that's OK. also need to know if it's a fully devolved the topic a high school diploma is important to my future. A high school diploma is important to my future for a number of reasons. The First being to attend college it is ...
*Tuesday, June 18, 2013 at 2:35am*

**college algebra**

a rectangular lot whose perimeter is 440 feet is fenced along three sides. an expensive fencing along the lot's length cost $16 per foot, and an inexpensive fencing along the two side widths costs only $11 per foot. The total cost of the fencing along the three sides comes...
*Tuesday, June 18, 2013 at 12:59am*

**MATH**

Complete Problem 34 in Section 5.2 Exercises (Ch. 5) of Essentials of Geometry for College Students. 34. Given: ABC,/ AD bisects <BAC, and /AE=/ED Prove: AE/AC = BD/BC
*Monday, June 17, 2013 at 10:46pm*

**math**

Varsity Press, a publisher of college textbooks, received a $70,000 promissory note at 12% ordinary interest for 60 days from one of its customers, Reader’s Choice Bookstores. After 20 days, Varsity Press discounted the note at the Grove Isle Bank at a discount rate of 14...
*Monday, June 17, 2013 at 11:41am*

**college algebra**

CRITICAL THINKING: Witout grouping symbols,the expression 2.3³+4 had a value of 58.Insert grouping symbols in the expression 2.3³ + 4 to produce the following values : 1. 62 2. 220 3. 4374 4. 279,936 Thanks ,please help me,i dont know what to do.
*Monday, June 17, 2013 at 5:26am*

**math help**

Consider the approximately normal population of heights of male college students with mean ì = 69 inches and standard deviation of ó = 4.6 inches. A random sample of 25 heights is obtained (e) Find P(x > 70). (Give your answer correct to four decimal places...
*Sunday, June 16, 2013 at 10:25pm*

**college algebra**

CRITICAL THINKING : Without grouping symbols,the expression 2.3³ + 4 has a value of 58.Insert grouping symbols in the expression 2.3³ + 4 to produce the following values : 1. 65 2. 220 3. 4374 4. 279,936 Please help me. Show all how you solve it..
*Sunday, June 16, 2013 at 4:18am*

**college algebra**

1.the temperature dropped 12 degree below a previous temperature of 37.5degree C.What was the resulting temperature? 2.What is the value of thirty-two more than a nine-fifths of the Celsius reading (degreeC),if the value of degree Celsius is 85?
*Sunday, June 16, 2013 at 4:07am*

**college algebra**

What degree change is there when the temperature climbs from - 20degree fahrenheit to 15degree Fahrenheit?
*Sunday, June 16, 2013 at 3:55am*

**math**

Varsity Press, a publisher of college textbooks, received a $70,000 promissory note at 12% ordinary interest for 60 days from one of its customers, Reader’s Choice Bookstores. After 20 days, Varsity Press discounted the note at the Grove Isle Bank at a discount rate of 14...
*Saturday, June 15, 2013 at 2:06pm*

**College Accounting**

Recording federal income tax transactions and cash dividend transactions. Selected transactions of Divad Corporation during 2013 follow. Record them in the general journal. Analyze: What annual per share dividend was paid to common stockholders in 2013? Mar. 15 Filed the ...
*Friday, June 14, 2013 at 12:39pm*

**Math Help**

Consider the approximately normal population of heights of male college students with mean ì = 69 inches and standard deviation of ó = 4.6 inches. A random sample of 25 heights is obtained. (c) Find the standard error of this sampling distribution. (Give your ...
*Thursday, June 13, 2013 at 11:46pm*

**College Physics**

A 57.0 cheerleader uses an oil-filled hydraulic lift to hold four 110 football players at a height of 1.40 . If her piston is 19.0 in diameter, what is the diameter of the football players' piston? The density of the oil in the hydraulic system is 900 kg/m^3.
*Thursday, June 13, 2013 at 7:27pm*

**English**

Correct the errors in these quotations. I Have this homework, I don't know if I'm in the right track... 1."This is the hardest class I've ever taken. It's also the most rewarding. The teacher sets the bar high and I think that forces us to learn more,"...
*Tuesday, June 11, 2013 at 9:17pm*

**Statistics**

3. The following table gives a two-way classification of all basketball players at a university who began their college careers between 2004 and 2008, based on gender and whether or nor they graduated. Graduated Did Not Graduate Male 126 55 Female 133 32 a) P(female or did not...
*Tuesday, June 11, 2013 at 1:45pm*

**business management**

success in college requires:
*Tuesday, June 11, 2013 at 12:10pm*

**English Pls Writeacher Help me by checking my work**

Please replace the incorrect words with correct words in the following sentences using AP Style. There may be more than one error per sentence; all sentences contain at least one error. Use correct AP style, punctuation, grammar and spelling errors.) 1. Original: California&#...
*Monday, June 10, 2013 at 6:30am*

**math**

*The value of the z-score in a hypothesis test is influenced by a variety of factors. Assuming that all other variables are held constant, explain how the value of z is influenced by each of the following: a. Increasing the difference between the sample mean and the original ...
*Sunday, June 9, 2013 at 8:12pm*

**statistics**

A nutritionist studying weight gain for college freshmen obtains a sample of n = 20 first year student at the state college. Each student is weighed on the first day of school an again on the last day of the semester. The following scores measure the change in weight, in ...
*Sunday, June 9, 2013 at 6:09pm*

**College Level Physics**

A horse pulls a cart with a force of 145 newtons at an angle of 30 degrees above the horizontal and moves along at a speed of 2.5 m/s. How much work to the nearest kJ does the force do in 6 minutes?
*Sunday, June 9, 2013 at 4:21pm*

**math **

A small community college is hoping to raise enough funds to put together an endowment in which the scholarships will be paid for by only the interest earned from the endowment. Assuming they can earn an average of 7.50% for the APR and that only the interest would be spent ...
*Saturday, June 8, 2013 at 9:01pm*

**Statistics(math)**

(20.47 S-AQ) A sample survey interviews an SRS of 252 college women. Suppose (as is roughly true) that 71% of all college women have been on a diet within the past 12 months. Using Normal approximation, what is the probability (±0.001) that 77% or more of the women in ...
*Friday, June 7, 2013 at 12:46pm*

**Psychology**

One of the arguments against inherited racial differences in intelligence is based on data that shows: A. a college education reduces the gap between the IQ scores of white and black races. B. nutrition reduces the gap. C. scores for black test takers improve as they mature. D...
*Thursday, June 6, 2013 at 11:10am*

**College Algebra**

Suppose that the Quadratic equation had two X-intercepts. How could you use the intercepts to find the vertex?
*Wednesday, June 5, 2013 at 1:34pm*

**College Algebra**

When using the Quadratic formula, why is only necessary to examine the discrimant to determine if the equation only has real numbers?
*Wednesday, June 5, 2013 at 1:27pm*

**College math 1**

All the 32 subsets for (x,y,z,u,v)
*Monday, June 3, 2013 at 10:26am*

**Statistics**

In a study on caffeine and stress, college students indicated how many cups of coffee they drink per day and their current stress level on a scale of 1 to 10. Obtain the appropriate correlation coefficents.
*Sunday, June 2, 2013 at 5:11pm*

**Physics 1 College Level**

A planet/moon has a mass of 77.89 × 1023 kg and a radius of 7.9 × 106 meters. What is g on the surface to the nearest hundredth of a m/s2? Once again, not really sure where to go with this. Out of the 10 problems I've only had trouble with this and one other.
*Saturday, June 1, 2013 at 4:10pm*

**Physics 1 College Level**

If D = 3204 meters and d = 1247 meters in the figure, what is the magnitude of the force on the space ship to the nearest MN? Consider all three to be point masses. I'm not even sure to begin with this question. Any help will be much appreciated!
*Saturday, June 1, 2013 at 4:09pm*

**Statistic**

At one college, GPA's are normally distributed with a mean of 2.7 and a standard deviation of 0.5. What percentage of students at the college have a GPA between 2.2 and 3.2?
*Friday, May 31, 2013 at 7:41pm*

**math**

A poll of 100 students was taken at a no-residential college to find out how they got to campus. The results were as follows: 28 said car pools;31 said buses;and 42 said they drove to school in their own car alone. In addition, 9 used both car pools and buses;10 said both car ...
*Friday, May 31, 2013 at 11:15am*

**math**

A high school guidance counselor conducts a survey to find the student's first choice for a college major and found that 65% of students choose math. If three students are chosen at a random, what is the probability that at least one of them would choose math?
*Tuesday, May 28, 2013 at 3:25am*

**economics**

Pls Help. Not too sure how to do this question. Someone wants to set aside money for their newborn daughters college funds. He estimates she would need 25,000 on her 17, 18, 19 and 20, birthdays. If he plans to make uniform deposits starting 3 years from now and through her 16...
*Sunday, May 26, 2013 at 2:53am*

**MATH315 Elementry Statistics **

A researcher surveyed college students to study their opinion about the proposed change in smoking rules. The researcher asked a group of 30 students: 12 of them supported the change, 13 of them did not, and 5 had no opinion. This is not a binomial model because... A. ...there...
*Saturday, May 25, 2013 at 10:27pm*

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