13 Let X be the number of showers (baths) taken by high school students per week. The pdf of X is shown below: x f(x) 5 .2 7 .7 10 .1 Find the standard deviation of X. For the instructor, this was question 5. / 1.30 X 1.69 X 6.51 X 7.02 X 42.4 X 47.61 X 49.30
13 Let X be the number of showers (baths) taken by high school students per week. The pdf of X is shown below: x f(x) 5 .2 7 .7 10 .1 Find the standard deviation of X. For the instructor, this was question 5. / 1.30 X 1.69 X 6.51 X 7.02 X 42.4 X 47.61 X 49.30
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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Transcribed Image Text:13 Let X be the number of showers (baths) taken by high school students per week. The pdf of X is shown below:
x f(x)
5 .2
7 .7
10 .1
Find the standard deviation of X.
For the instructor, this was question 5.
/ 1.30
X 1.69
X 6.51
X 7.02
X 42.4
X 47.61
X 49.30
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