Thursday

April 24, 2014

April 24, 2014

Number of results: 1,001

**stats**

is there a good, relevant sites where i can get stats extra help?
*Thursday, October 11, 2007 at 7:45pm by Keirson*

**C++ Programming**

Design and create a class named Stats that has an array of 12 doubles as one of its member variables. The values in the array should be set by making 12 calls to a public member function named setValue that accepts two arguments, an integer indicating which value is being ...
*Tuesday, June 8, 2010 at 4:25pm by kyuu09*

**stats**

Use this z-score formula for this problem: z = (x - mean)/(sd/√n) x = 1.25, 1.50 mean = 1.35 sd = 0.25 n = 40 Calculate two z-scores, then use a z-table to determine probability between the two scores. I hope this will help get you started. •stats. - Christina, Monday, ...
*Monday, March 18, 2013 at 10:01pm by Christina Ms Sue please help*

**stats**

If SS = 50 and s^2 = 10, what is n?
*Tuesday, October 2, 2012 at 8:17am by eric*

**Stats**

A certian company enjoyed 3.5% profits in year 1 over its revenue in Year 0. In Year 2, it enjoyed 5.75% profits over Year 1. In Year 3, it posted 1.25% profits over Year 2. What single, constant profit over this period of years would have produced the same profit? The teacher...
*Wednesday, May 4, 2011 at 7:47am by Anonymous*

**College Stats**

Is .09 less than .05?
*Sunday, May 8, 2011 at 11:46pm by Carol*

**stats**

given n=74 an x=32.find ^p and ^q
*Thursday, April 4, 2013 at 1:11am by Chris*

**stats**

if we reject the null hypothesis, we conclude that:
*Thursday, April 1, 2010 at 6:58am by Anonymous*

**stats**

Compute the following and show your steps 7! /5!.
*Saturday, August 7, 2010 at 12:41pm by renae*

**stats**

what does it mean to say alpha is set at 0.5
*Thursday, August 18, 2011 at 4:23pm by nicole*

**math stats**

how do i draw a histogram for the data (8,0,7,5,5)
*Tuesday, January 24, 2012 at 6:27pm by juan777*

**Stats**

What is the spread? How can it be found from a set of numbers?
*Tuesday, March 6, 2012 at 11:46pm by Jill*

**math stats**

Calculate p ̅. x1 20 n1 50 x2 55 n2 100
*Saturday, June 22, 2013 at 6:12pm by jerry*

**stats**

how does one make a residual plot please?
*Friday, November 16, 2007 at 12:16am by Anonymous*

**Stats**

What are variance and covariance? What do they mean? What are their differences/relationship?
*Monday, September 22, 2008 at 3:39pm by Blake*

**geography**

what are some tricks that will; help me remember the stats and the capitles
*Tuesday, February 23, 2010 at 6:29pm by briana*

**stats**

Let z be a random variable with a standard normal distribution, P(-1.9<=z<=2.1)
*Saturday, July 24, 2010 at 4:29pm by Clay*

**stats**

Mean is 60 and standard deviation is 7. what percentage is 73 and below.
*Tuesday, October 12, 2010 at 10:00am by Christine*

**Stats**

If a confidence interval for the mean is 24.8 < ě < 29.6. What is the margin of error?
*Monday, November 1, 2010 at 12:59pm by Erica*

**maths stats**

Please unscramlbe aaeebllnn which is a name. Thanks
*Thursday, May 5, 2011 at 1:09am by orla *

**Stats**

what is the range of data with a total of 1000 values?
*Sunday, September 4, 2011 at 1:36pm by Ann james*

**bussi./stats**

what is the probability that a loaf of bread is between 22.75 and 23.00?
*Tuesday, September 6, 2011 at 12:14pm by tim *

**STATS **

If Ho: μ = 50 and Ha: mu. = 59 and s = 10 what is αlpha if x exceeds 56for n=25
*Friday, March 15, 2013 at 10:42am by KP*

**stats 250**

A z-score of z = +3.00 indicates a location that is the following
*Thursday, June 6, 2013 at 9:03pm by Anonymous*

**stats**

how do you construct a relative frequency table based on an ogive?
*Saturday, September 6, 2008 at 3:39pm by arielle*

**stats**

How would r change if researchers had recordered the proportions?
*Friday, February 6, 2009 at 11:05pm by kate*

**stats**

if you know the mean and standard deviation, how do you determine the proportion that will and will not be included
*Sunday, November 4, 2012 at 3:05pm by mary*

**stats**

what is the distinction between repeated measurements and matched items?
*Tuesday, November 27, 2012 at 4:53pm by jason*

**Math/Statistics**

does anyone know anyting about standard deviation... I have no idea what it is! http://en.wikipedia.org/wiki/Standard_deviation http://www.robertniles.com/stats/stdev.shtml
*Sunday, August 5, 2007 at 12:23pm by Kaz*

**stats**

x and y independent exponential r.v with respctive parameters 2 and 3. find the cdf and density of z = x/y.
*Wednesday, November 8, 2006 at 11:55pm by ripa*

**stats**

find standard deviation for this problem daily precip- frequency-31,1,0,2,0,1 0.oo-0.49 0.50-0.99 1.00-1.49 1.50-1.99 2.00-2.29 2.50-2.99
*Thursday, May 8, 2008 at 12:30am by ebony*

**Stats**

If X is a normal random variable with mean 60, and a standard deviation of 2, find: A: P (X<58) B: P(X>63) C: P(57<X<64)
*Thursday, March 26, 2009 at 3:41pm by April*

**psy Stats.**

how do you Calculate percentage when given standard deviation and mean
*Tuesday, May 10, 2011 at 5:56pm by Kailey*

**Stats**

Can you tell me what ∑xy means? Like is in the sum of all x times y or what?
*Sunday, July 10, 2011 at 5:28pm by Carol*

**Stats**

Find the mean and standard deviation of the following probability distribution: x 1 2 3 P(x) 0.3 0.5 0.2
*Tuesday, October 25, 2011 at 8:37pm by Jen*

**stats**

if income in the us was normally distributed, what z-score would represent the top 1%?
*Monday, October 31, 2011 at 6:49pm by stacey*

**stats**

using a calculator need p value on a r tailed test if the n=9 and the t is 3.204
*Friday, December 2, 2011 at 2:11pm by James *

**stats & prob.**

Given the values of n=5, p= 0.15, and (1-p)=0.85, calculate the standard deviation of the data.
*Tuesday, November 27, 2012 at 3:21pm by Georgia*

**stats**

Given a standard normal variable. What is the probability that z lies between 1.48 and 2.13
*Tuesday, April 2, 2013 at 12:33am by chris*

**stats**

What does the best estimate mean after doing the liner regression equation
*Monday, May 6, 2013 at 9:11pm by Anonymous*

**Stats help**

What does the best estimate mean after doing the liner regression equation
*Tuesday, May 7, 2013 at 10:56am by Anonymous*

**stats**

how to find the are for a standard normal curve that cuts off the upper 1.1%
*Sunday, November 17, 2013 at 8:43pm by Anonymous*

**Stats**

Need help finding the area under the normal curve between z = -1.0 and z = -2.0?
*Wednesday, April 16, 2014 at 4:15pm by Betty*

**Stats**

Where can I find fuel efficient car sales statistic for recent years?
*Thursday, October 25, 2007 at 6:34pm by eason*

**college Stats**

If Y has a geometric distribution with success probability p, show that P(Y= an odd integer)= p/(1-(q^2))
*Tuesday, October 20, 2009 at 11:13pm by james*

**stats help!**

What 2 numbers is the emperical rule of 95% between if the P of no shows is .10 and the average party size is 10
*Thursday, January 13, 2011 at 5:04pm by Lauren*

**stats**

What are the steps to solve P(x>k)=.025 when the mean is 500, standard deviation is 100
*Sunday, March 13, 2011 at 8:19pm by Lillie*

**stats**

Find the probability that the company will meet its goal on a particular 50 miles of line
*Monday, October 17, 2011 at 10:15pm by Anonymous*

**business**

What data and stats do you need to know in order to identify profitable nations in which to export.
*Friday, October 5, 2012 at 2:53am by Lisa*

**Stats. **

Find the standard normal area for each of the following, showing your reasoning clearly. a. P(1.22<z<2.15) b. P(2.00<z<3.00) c. P(-2.00<z<2.00) d. p(z=0.50)
*Friday, April 11, 2014 at 11:02am by Kelly*

**Stats**

The heights of women in the US approximately follow a bell shaped curve. What do you think that means?
*Wednesday, November 11, 2009 at 11:37pm by Sam*

**STATS**

A student's grade on an examination was transformed to a z value of 0.67. Therefore, we know that she scored approximately in the top
*Tuesday, December 8, 2009 at 11:03pm by Anonymous*

**Stats**

Six letters are picked. Find the chance that they can be arranged to form the word RANDOM.
*Tuesday, April 15, 2014 at 7:14am by Mario007*

**Stats**

Why is it important to know the possible errors we might make when rejecting or failing to reject the null hypothesis?
*Tuesday, May 20, 2008 at 9:29am by Christine*

**FST (functions, stats, and trigonometry)**

what is the equation for the axis of symmetry for the function f(x)=IxI?(absolute value)
*Wednesday, October 7, 2009 at 9:05pm by Jared*

**Stats**

A testing service has 1000 raw scores. It wants to transform the distribution so that the mean =10 and the standard deviation = 1. To do so ?
*Thursday, February 18, 2010 at 4:52pm by Z*

**Algebra 2: Prob and Stats**

Find the sample size that produces the margin of error +-4.0% a) 325 b) 25 c) 16 d) 625
*Monday, May 24, 2010 at 7:07pm by Skye*

**Stats**

In a distribution of scores with a mean of 234 and a standard deviation of 47, what is in the 43rd percentile ? and what formula do i use ?
*Saturday, February 26, 2011 at 12:29am by Ruben*

**Stats**

In a distribution of scores with a mean of 234 and a standard deviation of 47, what is in the 43rd percentile ? and what formula do i use ?
*Saturday, February 26, 2011 at 12:29am by Ruben*

**stats**

women age 20-29 is 36ml staandard deviation 7ml. What is probability greater than 45ml and between 30 and 62 ml
*Saturday, August 27, 2011 at 6:05pm by anna*

**Stats**

Five measurements are taken and are 59.5", 61.33", 60.55", 61.00", 59.8". Find the likely size of the chance error in a single measurement.
*Tuesday, July 17, 2012 at 10:06pm by Anonymous*

**STATS**

The following confidence interval is obtained for a population proportion, p:0.556 < p < 0.584. What is the point estimate, p?
*Sunday, September 30, 2012 at 9:22pm by 1234*

**stats**

1. Find the sample variance and standard deviation 6, 53,11,49,35,26,28,28,31,31 s squared = (round to the nearest hundredth as needed)
*Tuesday, October 2, 2012 at 6:31pm by pat*

**stats**

if x is a normally distributed random variable with amean of 8.00 if the proability for x is less than 9.54 is 0.67, then find the standard deviation of x
*Sunday, October 21, 2012 at 9:35am by tamara*

**Stats**

Suppose X is a uniform random variable with C = 20 and d = 90. Find the probability that a randomly selected observation is between 23 and 85.
*Saturday, November 17, 2012 at 3:14pm by Marie*

**stats**

X is normally dsitributed with mean 250 and standard deviation 40. what value of X does only top 15% exceed?
*Monday, March 24, 2014 at 6:14am by Anonymous*

**stats**

Assume that aset of test scores is normally distributed with a mean of 100 and a standard deviation of 20 use the 68-95-99?
*Sunday, July 4, 2010 at 3:25pm by Anonymous*

**buss/stats**

what is it called when all the items in the population have the same chance of being selected for the sample?
*Saturday, October 8, 2011 at 6:46pm by Tim*

**Stats**

a die is rolled three times. find the chance that not all the rolls show 3 or more spots
*Sunday, December 4, 2011 at 5:55pm by Fay*

**stats**

. Find the mean and standard deviation of the following probability distribution: x 1 2 3 P(x) 0.4 0.25 0.35 Please show all of your work.
*Sunday, October 7, 2012 at 9:47am by Anonymous*

**Stats**

If X and Y are uncorrelated in the population, the expected value of the estimated linear regression coefficient (slope) is 0. True False
*Monday, November 5, 2012 at 10:33am by Mickie*

**stats**

if i have a sample size of 200, 16% are poor, what is my mean and standard deviation. my answers do not make any sense
*Tuesday, January 1, 2013 at 8:42pm by gary*

**stats**

explain and give example for each of the following types of variables: (a) equal-interval, (b) rank-over, and (c) nominal
*Monday, September 2, 2013 at 9:28pm by lucy*

**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 by penelope*

**Prob and Stats**

In a multiple regression with 5 predictors in a sample of 56 U.S. cities, what would be the critical value for an F test of overall significance at a= .05? A. 2.45 B. 2.37 C. 2.40 D. 2.56
*Wednesday, December 9, 2009 at 4:10pm by please help!*

**Stats**

The scores on a mathematics exam have a mean of 65 and a standard deviation of 7. Find the x-value that corresponds to the z-score 1.645.
*Wednesday, April 21, 2010 at 9:40am by Isa*

**stats**

three children in a class of 16 are being given awards. how many possible ways are there to pick winners if each prize is different.
*Saturday, September 25, 2010 at 9:22pm by cb*

**business and stats**

What type of data is the projected return on an investment? Qualitative , continous, attribute,discrete or none of the above
*Wednesday, August 31, 2011 at 4:39pm by Tim*

**stats**

if one can choose any six of 40 numbers, in any order, to play a state lottery game, how many different arrangments are possible?
*Sunday, February 26, 2012 at 12:41am by tim*

**Stats**

What is the minimal sample size needed for a 99% confidence interval to have a maximal margin of error of 0.06 if there is no preliminary estimate for p?
*Sunday, July 8, 2012 at 10:57pm by Lynn*

**stats**

n a study using 15 respondents and in which the population variance is unknown, what distribution should be used to calculate the confidence interval.
*Sunday, September 2, 2012 at 8:52pm by Anonymous*

**Stats**

A class of 85 students writing an exam had a mean mark of 74.2 write down the total sum of the 85 grades.
*Wednesday, September 26, 2012 at 6:04pm by Rachael *

**Stats**

identify what is the 95 percent confidence interval for upper class respondents, give you have known their mean=15.34, standard deviation=3.48,and cases=38
*Monday, April 4, 2011 at 8:18pm by Nancy*

**stats homework help**

A true-false test consists of 50 questions. how many does a student have to get right to convince you that he is not merely guessing Explain
*Monday, October 17, 2011 at 7:26pm by julia42*

**math stats**

A true-false test consists of 50 questions. how many does a student have to get right to convince you that he is not merely guessing Explain
*Monday, October 17, 2011 at 7:35pm by julia42*

**stats**

Determine the standard error of the mean if a random sample of 52 is pulled from a population with µ = 82 and ó = 18. Round your answer to two decimal places
*Friday, November 4, 2011 at 1:23pm by Anonymous*

**stats**

A set of LSAT scores follows the normal curve. The average is 560, and the standard deviation is 60. Find the 80th percentile.
*Saturday, July 7, 2012 at 6:35pm by sheri*

**stats**

A two-tailed test is conducted at the 5% significance level. What is the right tail percentile required to reject the null hypothesis?
*Saturday, September 1, 2012 at 11:29pm by Anonymous*

**Stats**

A two-tailed test is conducted at the 5% significance level. What is the right tail percentile required to reject the null hypothesis?
*Sunday, September 9, 2012 at 5:31am by Courtney*

**elementary stats**

A binomial random variable is based on n = 28 and p = 0.7. Find x2P(x). (Give your answer correct to two decimal places.) 1
*Saturday, March 30, 2013 at 4:15pm by Toni*

**statistics**

How do I sketch distributions? I think I'm doing it wrong. Is there an option my friends stats-calc(her calcultor is very tempremental, so i don't know if it'll work) I can utiilzie that'll sketch things for me? thanks. -Sketch a normal distribution with (mu) m =80 and ...
*Wednesday, January 30, 2008 at 6:27pm by Gloria*

**Stats**

What is the interdecile range of the following: X Percentile 107 10th 114 25th 118 50th 122 75th 129 90th
*Friday, January 22, 2010 at 11:58am by KLM*

**stats**

Between 11 P.M. and midnight on Thursday night, Mystery Pizza gets an average of 4.2 telephone orders per hour. Find the probability that,
*Friday, October 8, 2010 at 1:12am by mnmn*

**Stats**

Rank the following data in increasing order and find the position and value of the 56th percentile. Please show all of your work. 0 1 6 8 9 9 8 6 3 1 0 9
*Saturday, October 15, 2011 at 12:24pm by Jennifer*

**Stats**

What critical t value would be needed to construct a 90% confidence interval on a sample of size 22? 1.717 1.323 2.080 1.321 1.721
*Sunday, November 4, 2012 at 11:47am by etwetw*

**stats.**

All the following are measures of variability or dispersion within a set of data except? range, median, standard deviation, variance
*Saturday, April 13, 2013 at 2:31pm by Linda*

**Stats**

Angela is conducting a poll on campus to determine the next student representative. How many students does she need to sample for a confidence level of 90% with a margin of error of + or - 5%?
*Saturday, May 14, 2011 at 9:45pm by Ana*

**Stats**

Given that a sample is approximately bell-shaped with a mean of 60 and a standard deviation of 3, the approximate percentage of data values that is expected to fall between 54 and 66 is 75% 95% 68% 99.7%
*Saturday, March 3, 2012 at 8:26pm by Ashley*

**Stats**

In a qualitative study, which of the following is mostly likely to appear as an outcome of the study?
*Sunday, February 3, 2013 at 8:40pm by Anonymous*

**stats**

Does the regression line equation change if you change the independent and dependent variable
*Monday, May 6, 2013 at 9:23pm by Anonymous*

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