Answer
a. λ=0.8
P P(x=0) =$\frac{0.8^{0}e^{-0.8}}{0!}$=0.4493
b. see table
c. μ = λ = 0.8
$σ^{2}$=λ = 0.8
σ=$\sqrt 0.8$ = 0.8944
Work Step by Step
--
Introductory Statistics 9th Edition
by Mann, Prem S.
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: 5.57
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