At a gas station, 40% of customers use regular gasoline, 35% use extra gasoline and the remaining ask for premium gasoline. Of those who consume regular gasoline, only 30% fill the tank, of those who buy extra, 60% fill the tank and those who carry premium, 50% fill the tank. If the next customer fills the tank, the probability that he asks for premium gas is:
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.
At a gas station, 40% of customers use regular gasoline, 35% use extra gasoline and the remaining ask for premium gasoline. Of those who consume regular gasoline, only 30% fill the tank, of those who buy extra, 60% fill the tank and those who carry premium, 50% fill the tank. If the next customer fills the tank, the probability that he asks for premium gas is:
Step by step
Solved in 2 steps with 1 images
