3-118. Estelle and Carlos will be hosting a party and will buy six pies for their guests. Two lemon meringue pies cost $3 less than four blueberry pies. Three lemon meringue pies cost $9 more than three blueberry pies. How much does each type of pie cost?

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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.