In a survey in a certain year of married couples with earnings, 94% of all husbands were employed. Of all employed husbands, 78% of their wives were also employed. Noting that either the husband or wife in a couple with earnings had to be employed, find the probability that the husband of an employed woman was also employed.
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.
In a survey in a certain year of married couples with earnings, 94% of all husbands were employed. Of all employed husbands, 78% of their wives were also employed. Noting that either the husband or wife in a couple with earnings had to be employed, find the
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