If 55 percent of the families in a certain city subscribe to the morning newspaper, 60 percent of the families sub- scribe to the afternoon newspaper, and 85 percent of the families subseribe to at least one ol the two newspapers, what percentage of the families subscribe to both newspa- pers?
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.
If 55 percent of the families in a certain city subscribe to the morning newspaper, 60 percent of the families sub- scribe to the afternoon newspaper, and 85 percent of the families subseribe to at least one ol the two newspapers, what percentage of the families subscribe to both newspa- pers?
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