Answer
$\mu=3.5$
$\sigma=\sqrt \frac{5}{2}\approx1.118$
Work Step by Step
$\mu=E(X)=\frac{5+2}{2}=3.5$
$\sigma^{2}=\frac{(5-2+1)^{2}-1}{12}=1.25$
$\sigma=\sqrt \sigma^{2}=\sqrt \frac{5}{2}\approx1.118$
Applied Statistics and Probability for Engineers, 6th Edition
by Montgomery, Douglas C.; Runger, George C.
Published by
Wiley
ISBN 10:
1118539710
ISBN 13:
978-1-11853-971-2
Chapter 3 - Section 3-5 - Discrete Uniform Distribution - Exercises - Page 79: 3-79
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