Which one of these variables is a continuous random variable? The number of tattoos a randomly selected person has. Ob. None of these The time it takes a randomly selected student to complete an exam. Od. The number of women taller than 68 inches in a random sample of 5 women The number of correct guesses on a multiple choice test.

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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.