2. The results of a search to find the least expensive round-trip flights to Atlanta and Salt Lake City from 14 major U.S. cities are shown in the following table. The departure date was June 20, 2012, and the return date was June 27, 2012. Round-Trip Cost ($) Atlanta Departure City Salt Lake City Cincinnati 340.10 570.10 New York 321.60 354.60 Chicago 291.60 465.60 Denver 339.60 219.60 Los Angeles 359.60 311.60 Seattle 384.60 297.60 Detroit 309.60 471.60

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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.