gss$hyperten yes Row Total gss$sex no male 182 425 607 1.636 0.613 29.9848 53.6878 70.016 47.0138 48.8338 14.6428 34.1918 female 157 479 636 1.561 24.6868 0.585 75.3148 51.1678 46.3138 12.6318 52.9878 38.5368 Column Total 339 904 1243

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A: Number of groups  =5  alpha = 0.01

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A: The height of men in the US in 1950 was normally distributed with µ = 177.1 cm and σ = 7 cm.

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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.