Refer to the accompanying table, which describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children. Find the mean and standard deviation for the number of girls in 8 births.Click the icon to view the data table.The mean is μ =girl(s). (Round to one decimal place as needed.)The standard deviation is o = girl(s). (Round to one decimal place as needed.)Table of numbers of girls and probabilitiesNumber ofGirls x78P(x)0.0040.0260.1030.2270.2270.2730.224C0.1110.0290.003DX

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Answered: The mean is μgirl(s). (Round to one…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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instructor gives a 100-point examination in which the grades are normally distributed. The mean is 66 and the standard deviation is 5. If there are 5% A's and 5% F's, 15% B's and 15% D's, and 60% C's, find the scores that divide the distribution into those categories. Round the cutoff scores to the nearest whole number. Round intermediate z-value calculations to 2 decimal places. A:_- B: C: D: --- F: _-_
cw2 For the data shown, answer the questions. Round to 2 decimal places. x 22.3 7 28.9 25.4 17.5 Find the mean: Find the median: Find the standard deviation:
The amount of caffeine in a sample of five-ounce servings of brewed coffee is shown in the histogram. Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. Click the icon to view the histogram. Graph/chart Midpoint x xt Ay 30+ 2 70.5 141 24 14 92.5 1295 25- 24 114.5 2748 20- 7 136.5 955.5 14 15- 3 158.5 475.5 10- 7 ΣΤ- 50 Exf = 5615 5- Find the mean of the data set. 48.5 70.5 92.5 114.5 136.5 158.5 x = 112.3 (Round to the nearest tenth as needed.) Complete the table. Round values to the nearest tenth as needed. Midpoint x (x-x)? (x-x)?f Print Done X-X 70.5 - 41.8 1747.2 3494.5 92.5 1295 85556.3 119787.5
A study group takes a practice statistics exam. They find that the group has a mean score of 80 with a Standard Deviation of 5. Lily has a z-score of 1.9 and wants to know her raw score. Calculate her score. the answer is Between 89.4 and 89.6 can you please show me the work, how do I find her score?
ASAP! PREVIOUS ANSWERS ARE WRONG AND INCOMPLETE. PLEASE ANSWER WITHIN AN HOUR TO GET A LIKE. FOLLOW THE INSTRUCTIONS TO RECEIVE A THUMS UP
Assume that adults have IQ scores that are normally distributed with a mean of u = 105 and a standard deviation a = 15. Find the probability that a randomly selected adult has an IQ between 91 and 119. Click to view page 1 of the table. Click to view page 2 of the table. The probability that a randomly selected adult has an IQ between 91 and 119 is. (Type an integer or decimal rounded to four decimal places as needed.) Enter your answer in the answer box. MacBook Air esc 888 %23 & 2 3 4 5 6 7 8 Q E R T Y tab P A D G H caps lock K V в N M > ? control option command command option
The tourist bureau of the Caribbean Islands surveyed a sample of 5 United States tourists as they left to return home. The tourists were asked how many days they spent on their visits. Their responses were as follows. 9, 10, 8, 4, 9 Send data to calculator Find the standard deviation of this sample of numbers. Round your answer to two decimal places. X
Refer to the accompanying table, which describes the number of adults in groups of five who reported sleepwalking. Find the mean and standard deviation for the numbers of sleepwalkers in groups of five. E Click the icon to view the data table. ve The mean is sleepwalker(s). (Round to one decimal place as needed.) sleepwalker(s). (Round to one decimal place as needed.) The standard deviation is ck! Table of numbers of sleepwalkers and probabilities P(x) 0.205 0.351 0.291 0.125 0.026 0,002 3 4 Print Done XLSX Enter vour answer in each of the answer boxes. 33283.xls Exit Honorlock MacBook Air 20 F3 F4 * ES F6 F7 F8 F10 # 24 3 & 5 7 8. 6. E Y U F

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The mean is μgirl(s). (Round to one decimal place as needed.) The standard deviation is a = girl(s). (Round to one decimal place as needed.) Table of numbers of girls and prob