A group of people studied the relationship of smoking habits and hypertension. The data below have gathered for 210 individuals: Non Moderate Heavy Smokers Smokers Smokers Hypertension Nonhypertension 20 60 40 50 30 10 If one of these individuals is to be selected at random, find the probability that the person is a moderate smoker given that the person is experiencing non hypertension

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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.