Answer
$p(x)=\begin{pmatrix} 5 \\ x \end{pmatrix}(.25)^x(.75)^{5-x}$
Work Step by Step
$p(x)=\begin{pmatrix} n \\ x \end{pmatrix}p^xq^{n-x}$
$n=5,~p=.25,~q=.75$
$p(x)=\begin{pmatrix} 5 \\ x \end{pmatrix}(.25)^x(.75)^{5-x}$
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: 4.64b
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