4/29/25_A_Homework #4

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What is a contingency table?

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A contingency table is a type of table used in statistics to display the frequency distribution of variables. It shows the relationship between two categorical variables.

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How do you calculate the percentage of a category in a contingency table?

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To calculate the percentage of a category, divide the frequency of that category by the total frequency and multiply by 100.

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What does it mean to find the proportion of a subgroup in a contingency table?

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Finding the proportion of a subgroup means calculating the ratio of the number of individuals in that subgroup to the total number of individuals in the sample.

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What is the formula for calculating proportions?

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Proportion = (Number of favorable outcomes) / (Total number of outcomes)