Garrett buys a bag of cookies that contains 4 chocolate chip cookies, 6 peanut butter cookies, 5 sugar cookies and 7 oatmeal cookies. What is the probability that Garrett reaches in the bag and randomly selects a peanut butter cookie from the bag, eats it, then reaches back in the bag and randomly selects an oatmeal cookie?
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.
There are 4 chocolate chip, 6 peanut butter, 5 sugar and 7 oatmeal cookies in the bag.
So, total number of cookies=22
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