Let X be a random variable with the following probability distribution: X -4 3 5 f(x) 0.3 0.2 0.5 Find the standard deviation of X. The standard deviation is (Round to two decimal places as needed.)

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Let X be a random variable with the following probability distribution:
X
- 4
3
5
D
f(x)
0.3
0.2
0.5
Find the standard deviation of X.
The standard deviation is
(Round to two decimal places as needed.)
Transcribed Image Text:Let X be a random variable with the following probability distribution: X - 4 3 5 D f(x) 0.3 0.2 0.5 Find the standard deviation of X. The standard deviation is (Round to two decimal places as needed.)
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