Historically 20 % of workers participate in a retirement plan. A group of 5 workers is randomly selected. What is the probability that exactly 2 workers participated in the retirement plan ? What is the probability that at least 3 workers participated in the plan ?
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.
Historically 20 % of workers participate in a retirement plan. A group of 5 workers is randomly selected. What is the
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