Answer
$p(x=2)=.264$
Work Step by Step
$p(x=2)=\begin{pmatrix} 5 \\ 2 \end{pmatrix}(.25)^2(.75)^{5-2}=\frac{5!}{2!(5-2)!}(.25)^2(.75)^3=10(.25)^2(.75)^3=.264$
Statistics (12th Edition)
by McClave, James T.; Sincich, Terry T.
Published by
Pearson
ISBN 10:
0321755936
ISBN 13:
978-0-32175-593-3
Chapter 4 - Discrete Random Variables - Exercises 4.50 - 4.76 - Applying the Concepts - Basic - Page 206: 4.64c
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