15) Suppose the number of babies born during an eight-hour shift at a hospital's maternity wing follows a Poisson distribution with a mean of 3 an hour. Find the probability that exactly seven babies are born during a randomly selected hour.

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A:

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Q: (a) What is the probability that exactly 19 people come in and get diagnosed with some form of…

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A: Formula : poisson distribution is given by

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A:

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A: Given : Mean = λ = 3.5

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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.