Assume that 32.4​% of people have sleepwalked. Assume that in a random sample of 1517 ​adults, 530 have sleepwalked. a. Assuming that the rate of 32.4​% is​ correct, find the probability that 530 or more of the 1517 adults have sleepwalked. b. Is that result of 530 or more significantly​ high? c. What does the result suggest about the rate of 32.4​%?

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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.