1. The following are the numbers of minutes it took random samples of boys and girls to complete a written test given for the renewal of their driving licenses. Boys 11 7.4 8.9 9.1 7.7 9.7 11.8 9.2 10 10.2 9.5 10.8 8 9.5 7.5 Girls 8.8 10.9 9.8 10.7 9.4 10.3 7.3 11.5 7.6 9.3 Use U test at 0.1 level of significance to decide whether to accept H. : 4 = H2 or the alternative hypothesis H1 H1 # .

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Q: 2.3.Discuss the skewness of the

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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.