Finite Math and Applied Calculus (6th Edition)

Published by Brooks Cole
ISBN 10: 1133607705
ISBN 13: 978-1-13360-770-0

Chapter 8 - Section 8.3 - Measures of Central Tendency - Exercises - Page 576: 18

Answer

2.5

Work Step by Step

Each number has a probability of selection of $\frac{1}{4}$ E(x) = $\frac{1}{4}(1+2+3+4)$ = 2.5
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