3. Three an electronic toothbrushes inadvertently being sent to the point a store by the company of toothbrushes together with 17 a good toothbrush. a. How probability is the first two toothbrushes that trejual will be consumers return to the store because of being damaged? b. How many probability is the first two toothbrushes that are sold is

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A: Solution

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A:

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A:

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A:

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A:

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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.