Suppose that in a survey of five year olds, 45% liked the letter A, 51% liked the letter B, and 48% liked the letter C. 27% liked A and B, 27% liked A and C, 27% liked B and C, and 14% liked all of them. What percentage liked A and B but not letter C?
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.
It is given that, in a survey of five year olds, 45% liked the letter A, 51% liked the letter B, and 48% liked the letter C. Now, 27% liked A and B, 27% liked A and C, 27% liked B and C, and 14% liked all of them.
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