Question
The number of sets X won per match by a professional tennis player has the following probability distribution : x 0 1 2 3 P(X=x)
The number of sets X won per match by a professional tennis player has the following probability distribution :
x 0 1 2 3
P(X=x) 0.3 0.4 0.1 0.2
it can be calculated that E(X) = 1.2. What is the variance of X?
a. 1.35
b. 1.16
c. 1.29
d. 1.09
e. 1.01
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Construction accounting and financial management
Authors: Steven j. Peterson
2nd Edition
135017114, 978-0135017111
