7. The following table organizes students by campus and gender: Richmon Surrey Newton Langley All Campuses d. Male 1800 1600 700 700 4800 Female 2200 1900 300 800 5200 Total 4000 3500 1000 1500 10000 Find: a) the probability of a student being female. b) the probability of a Newton student being female. c) the probability of a female student being at Newton. d) the probability of male student being at Richmond or Surrey.

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A: It is given that the data of students, grades and gender in the tabulation form.

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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.