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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 1. 2 3 4. 0.059 0.123 0.162 0.177 0.215 0.128 0.083 0.053 6 7 Probability (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 no activities. The standard deviation is, so the typical number of activities per student deviates from the mean by about 2 activities. (Round to one decimal place as needed.) 535 Next Purchase Options 1:23 PM

Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student Activities 1. 2 3 4. 0.059 0.123 0.162 0.177 0.215 0.128 0.083 0.053 6 7 Probability (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 no activities. The standard deviation is, so the typical number of activities per student deviates from the mean by about 2 activities. (Round to one decimal place as needed.) 535 Next Purchase Options 1:23 PM

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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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 4 0.059 0.123 0.162 0.177 0.215 0.128 0.083 0.053 5 Probability (a) Find the mean, variance, and standard deviation of the probability distribution. deviates from the mean by about 2 activities. deviates from the mean by about 4 activities. does not deviate from the mean. deviates from the mean by more than 4 activities. tivities. The standard deviation is, so the typical number of activities per student deviates from the mean by about 2activities. (Round to one decimal place as nee ed.) hly $35 Next Purchase Options 1:24 PM 72°F A, 12/1/2021
Transcribed Image Text:Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student Activities 4 0.059 0.123 0.162 0.177 0.215 0.128 0.083 0.053 5 Probability (a) Find the mean, variance, and standard deviation of the probability distribution. deviates from the mean by about 2 activities. deviates from the mean by about 4 activities. does not deviate from the mean. deviates from the mean by more than 4 activities. tivities. The standard deviation is, so the typical number of activities per student deviates from the mean by about 2activities. (Round to one decimal place as nee ed.) hly $35 Next Purchase Options 1:24 PM 72°F A, 12/1/2021
Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student Activities 0. 1 2 3 4. 0.059 0.123 0.162 0.177 0.215 0.128 0.083 0.053 6 7 Probability (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 no activities. The standard deviation is, so the typical number of activities per student deviates from the mean by about 2 activities. (Round to one decimal place as needed.) 535 Next Purchase Options 1:23 PM 72°F A a 12/1/2021
Transcribed Image Text:Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student Activities 0. 1 2 3 4. 0.059 0.123 0.162 0.177 0.215 0.128 0.083 0.053 6 7 Probability (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 no activities. The standard deviation is, so the typical number of activities per student deviates from the mean by about 2 activities. (Round to one decimal place as needed.) 535 Next Purchase Options 1:23 PM 72°F A a 12/1/2021
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