Customers at a gas station pay with credit card (A), debit card (B), and cash (C). Assume each customer has independent choices with P(A) = 0.5, P(B) = 0.2, and P(B) = 0.3, find the probability that in 100 customers, 60 of them will pay via credit card, 10 via debit card, and 30 cash.
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.
Customers at a gas station pay with credit card (A), debit card (B), and cash (C). Assume each customer has independent choices with P(A) = 0.5, P(B) = 0.2, and P(B) = 0.3, find the
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