Suppose you host a party for 19 of your close friends. In total, there are 20 people at the party. Explain why there must be at least 2 people in the party who are friends with the same number of people at the party. Assume friendship is always reciprocated.
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.
Suppose you host a party for 19 of your close friends. In total, there are 20 people at the party. Explain why there must be at least 2 people in the party who are friends with the same number of people at the party. Assume friendship is always reciprocated.
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