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Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student 1. Activities 2 3 4 5 6 7 Probability 0.059 0.123 0.162 0.177 0.216 0.127 0.084 0.052 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is (Round to one decimal place as needed.) The variance is (Round to one decimal place as needed.) The standard deviation is. (Round to one decimal place as needed.) (b) Interpret the results. The mean is so the average student is involved in V The standard deviation is so the typical number of activities per student (Round to one decimal place as needed.) deviates from the mean by about 4 activities. does not deviate from the mean. deviates from the mean by about 2 activities. deviates from the mean by more than 4 activities.

Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student 1. Activities 2 3 4 5 6 7 Probability 0.059 0.123 0.162 0.177 0.216 0.127 0.084 0.052 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is (Round to one decimal place as needed.) The variance is (Round to one decimal place as needed.) The standard deviation is. (Round to one decimal place as needed.) (b) Interpret the results. The mean is so the average student is involved in V The standard deviation is so the typical number of activities per student (Round to one decimal place as needed.) deviates from the mean by about 4 activities. does not deviate from the mean. deviates from the mean by about 2 activities. deviates from the mean by more than 4 activities.

MATLAB: An Introduction with Applications
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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Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student Activities 2 3 4 5 6 Probability 0.059 0.123 0.162 0.177 0.216 0.127 0.084 0.052 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is (Round one decimal place as needed.) The variance is. (Round to one decimal place as needed.) The standard deviation is. (Round one decimal place as needed.) (b) Interpret the results. The mean is , so the average student involved in V The standard deviation is so the typical number of activities per student (Round to one decimal place as needed.) deviates from the mean by about 4 activities. does not deviate from the mean. deviates from the mean by about 2 activities. deviates from the mean by more than 4 activities. O Timo
Transcribed Image Text:Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student Activities 2 3 4 5 6 Probability 0.059 0.123 0.162 0.177 0.216 0.127 0.084 0.052 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is (Round one decimal place as needed.) The variance is. (Round to one decimal place as needed.) The standard deviation is. (Round one decimal place as needed.) (b) Interpret the results. The mean is , so the average student involved in V The standard deviation is so the typical number of activities per student (Round to one decimal place as needed.) deviates from the mean by about 4 activities. does not deviate from the mean. deviates from the mean by about 2 activities. deviates from the mean by more than 4 activities. O Timo
Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student Activities Probability 1 2 3 4 5 7 0.059 0.123 0.162 0.177 0.216 0.127 0.084 0.052 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is (Round to one decimal place as needed.) The variance is (Round to one decimal place as needed.) The standard deviation is (Round to one decimal place as needed.) (b) Interpret the results. The mean is so the average student is involved in The standard deviation is , so the typical number of activities per student (Round to one decimal place as needed.) at least 5 activities. 3 or 4 activities. no activities.
Transcribed Image Text:Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student Activities Probability 1 2 3 4 5 7 0.059 0.123 0.162 0.177 0.216 0.127 0.084 0.052 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is (Round to one decimal place as needed.) The variance is (Round to one decimal place as needed.) The standard deviation is (Round to one decimal place as needed.) (b) Interpret the results. The mean is so the average student is involved in The standard deviation is , so the typical number of activities per student (Round to one decimal place as needed.) at least 5 activities. 3 or 4 activities. no activities.
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mean=E(X)=∑X.P(X)

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