In a newspaper ad, a car dealer lists a 2001 Chrysler, a2010 Ford, and a 2008 Buick. If the numbers of inquiries he will get about these cars may be regarded as indepen-dent random variables having Poisson distributions with the parameters λ1 = 3.6, λ2 = 5.8, and λ3 = 4.6, what arethe probabilities that altogether he will receive(a) fewer than 10 inquiries about these cars;(b) anywhere from 15 to 20 inquiries about these cars;(c) at least 18 inquiries about these cars?

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A: P(B0) = 0.49P(B1) = 0.31P(B2) = 0.20

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A:

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A: HybridNot HybridSumMale76116192Female3381114Sum109197306

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A:

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.