Let random variable X follow a binominal distribution with probability of success 20%. You are supposed to make 3 selections. What is the probability that X is at most 2?
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.
5) Let random variable X follow a binominal distribution with probability of success 20%. You are supposed to make 3 selections. What is the probability that X is at most 2?
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