23 randomly selected students were asked the number of movies they watched the previous week. The results are as follows: # of Movies 1 3 4. 6. Frequency 4 4. 4. 4. 3 Round all your answers to 4 decimal places where possible. The mean is: The median is: The sample standard deviation is:

23 randomly selected students were asked the number of movies they watched the previous week. The results are as follows: # of Movies 1 3 4. 6. Frequency 4 4. 4. 4. 3 Round all your answers to 4 decimal places where possible. The mean is: The median is: The sample standard deviation is:

Name: 23 randomly selected students were asked the number of movies they wa
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Description: 23 randomly selected students were asked the number of movies they watched the previous week. The resultsare as follows:# of Movies134.6.Frequency44.4.4.3Round all your answers to 4 decimal places where possible.The mean is:The median is:The sample

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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Every year, the students at a school are given a musical aptitude test that rates them from 0 (no musical aptitude) to 5 (high musical aptitude). This year's results are given in the frequency distribution: Aptitude Score 0 1 2 3 4 5 Frequency 1 6 4 1 5 2 Calculate the sample standard deviation of this data. Answer using two decimal places.
In the 1992 presidential election, Alaska's 40 election districts averaged 1993 votes per district for President Clinton. The standard deviation was 584. (There are only 40 election districts in Alaska.) The distribution of the votes per district for President Clinton was bell-shaped. Let X = number of votes for President Clinton for an election district. (Source: The World Almanac and Book of Facts) Round all answers except part e. to 4 decimal places. a. What is the distribution of X? X ~ N( b. Is 1993 a population mean or a sample mean? Select an answer v C. Find the probability that a randomly selected district had fewer than 2053 votes for President Clinton. d. Find the probability that a randomly selected district had between 2074 and 2208 votes for President Clinton. e. Find the 95th percentile for votes for President Clinton. Round your answer to the nearest whole number.
A sample consists of the following N scores 1,9,8,5,7 calculate the standard deviation
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Consider the given data set. n = 12 measurements: 9, 8, 1, 5, 5, 7, 5, 6, 8, 7, 2, 0 Find the mean. USE SALT Find the standard deviation. (Round your answer to four decimal places.) z = Find the z-score corresponding to the minimum in the data set. (Round your answer to two decimal places.) Find the z-score corresponding to the maximum in the data set. (Round your answer to two decimal places.) z = Do the z-scores indicate that there are possible outliers in the data set? Since the z-score for the larger observation is larger than 2 in absolute value, the larger value is unusually large. Since both z-scores exceed 2 in absolute value, both of the observations are unusual. Since neither z-score exceeds 2 in absolute value, none of the observations are unusually small or large. Since the z-score for the smaller observation is larger than 2 in absolute value, the smaller value is unusually small.
Q A For the data shown, answer the questions. Round to 2 decimal places. X 5.5 22.6 29.9 23.3 17.3 27.7 11.9 2 7 3.2 Find the mean: Find the median: Find the sample standard deviation: Submit Question S E R F T 6 Y H 8 O
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For the data shown, answer the questions. Round to 2 decimal places. X 12.9 19.6 4 24.7 8.6 26.6 11.2 29.4 16.7 5.6 Find the mean: Find the median: Find the sample standard deviation:
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