Forty cities were researched to determine whether they had a professional sports team, a symphony, or a children's museum. Of these cities, 19 had a professional sports team, 20 had a symphony, 20 had a children's muse um 13 had a professional sports team and a symphony, 9 had a professional sports team and a children's museum, 12 had a symphony and a children's museum, and 7 had all three activities. Complete parts a) through e) below a) How many of the cities surveyed had only a professional sports team? (Simplify your answer.) b) How many of the cities surveyed had a professional sports team and a symphony, but not a children's museum? (Simplify your answer.) c) How many of the cities surveyed had a professional sports team or a symphony? (Simplify your answer.) d) How many of the cities surveyed had a professional sports team or a symphony, but not a children's museum? (Simplify your answer.) e) How many of the cities surveyed had exactly two of the activities? (Simplify your answer.) Enter your answer in each of the answer boxes. Next

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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.