Introductory Statistics 9th Edition

Published by Wiley
ISBN 10: 1-11905-571-7
ISBN 13: 978-1-11905-571-6

Chapter 5 - Section 5.6 - The Poisson Probability Distribution - Exercises - Page 213: 5.58

Answer

Cumulative Poisson Distribution Table is formed as follows: a. a. λ=20 P P(x=20) =$\frac{20^{25}e^{-20}}{25!}$=0.04459 b. i. $P(x\leq12)$ = 0.039 ii. $P(13 \leq x \leq 17)$ = $P(x\leq17) $-$P(x\leq12) $ = 0.2970-0.0390 = 0.258 iii. $P(x\geq30)$ = 1-$P(x\leq29) $ = 1-0.9782 = 0.0218
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Work Step by Step

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