Following is the probability distribution for age of a student at a certain public high school. 13 14 15 16 17 18 P(x) 0.1 0.24 0.23 0.28 0.13 0.02 x (a) Find the variance of the ages. Round the answer to at least four decimal places. The variance of the ages is

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Following is the probability distribution for age of a student at a certain public high school.
X
P(x)
13 14 15
16
17 18
0.1 0.24 0.23 0.28 0.13 0.02
(a) Find the variance of the ages. Round the answer to at least four decimal places.
The variance of the ages is
Transcribed Image Text:Following is the probability distribution for age of a student at a certain public high school. X P(x) 13 14 15 16 17 18 0.1 0.24 0.23 0.28 0.13 0.02 (a) Find the variance of the ages. Round the answer to at least four decimal places. The variance of the ages is
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(b) Find the standard deviation of the ages. Round the answer to at least four decimal places.
The standard deviation of the ages is
Transcribed Image Text:(b) Find the standard deviation of the ages. Round the answer to at least four decimal places. The standard deviation of the ages is
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