A retailer sells two types of ski goggles. Thirty percent of the sales is of type A, and the rest is of type B. Six percent of all type A goggles are returned within 10 days after the sale, whereas only three percent of type B are returned. What percentage of goggles are returned within the first 10 days after the sale? a. 29.29% b. 3.90% c. 11.11% d. 9.00%
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.
A retailer sells two types of ski goggles. Thirty percent of the sales is of type A, and the rest is of type B. Six percent of all type A goggles are returned within 10 days after the sale, whereas only three percent of type B are returned. What percentage of goggles are returned within the first 10 days after the sale?
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