Applied Statistics and Probability for Engineers, 6th Edition

Published by Wiley
ISBN 10: 1118539710
ISBN 13: 978-1-11853-971-2

Chapter 2 - Section 2-2 - Interpretations of Probability - Exercises - Page 34: 2-65

Answer

a) $0.83$ b) $0.85$

Work Step by Step

Note that $S =$ {$0, +2, +3, +4$} a) We want to find $P( charge >0) = P(+2) + P(+3) + P(+4) = 0.35 + 0.33 + 0.15 = 0.83$ b) We want to find $P( charge \leq +3) = P(0) + P(+2) + P(+3) = 0.17 + 0.35 + 0.33 = 0.85$
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