# Chapter 5 - Discrete Probability Distributions - 5-5 Poisson Probability Distributions - Basic Skills and Concepts - Page 233: 10

a)mean=133.39 b)0.035 c)very unlikely.

#### Work Step by Step

a) Here, $mean=\frac{5469}{41}=133.39.$ b)$P(X=133)=\frac{133.39^{133}\cdot e^{-133.39}}{133!}=0.035.$ c)The result in b) is really small, therefore it is very unlikely.

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