11. In an Anti-Corona Campaign, Drug-X was administered to 500 persons out of a total population of 2000. The number of 'Fever'& 'No Fever' cases is shown below; Treatment Fever No Fever 20 480 Drug-X No Drug-X 100 1400 Whereas the expected Drug-X & No Drug-X administered values for 'Fever' & 'No Fever' are as 30 & 470 and 90 & 1410 respectively. Discuss the usefulness of Drug-X in checking Corona disease with 95% confidence using x test [take DF = 1].

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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.