Keke's Kookies sells mini cookies in packs of 5 and has determined a probability distribution for the number of cookies that they sell in a given day. X= #sold 0 5 10 15 20 Probability 0.2 0.49 0.1 ...? 0.18 a. What is the probability of selling 15 mini cookies in a given day? b. Find the expected number of mini cookies sold in a day using the discrete probability distribution. c. Find the variance of the number of mini cookies sold in a day using the discrete probability distribution.

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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.