|A 8 A sequence of independent Bernoulli trials with probability of success p is performed. Let the ran dom variable X be the number of failures before the first success. R.D.R EGALA STAT 203 March 4, 2021 a) Find the probability mass function of X, confirming that the sum over all possible values of X is one.

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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.