If the probability density function of the random variable X is x>0, f(x)= 0, Otherwise. Then the variance of X is Select one: О а.2

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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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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If the probability density function of the random variable X is
eX, x>0,
f(x)=
0,
Otherwise.
Then the variance of X is
Select one:
О a.2
O b.1
O c. -2
d. -1
Transcribed Image Text:If the probability density function of the random variable X is eX, x>0, f(x)= 0, Otherwise. Then the variance of X is Select one: О a.2 O b.1 O c. -2 d. -1
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