The managers at Queen’s Fashions plan to hold a special promotion over Memorial Day weekend. Each customer who makes a purchase exceeding $100 will qualify to select an envelope from a large drum. Inside the envelope are coupons for percentage discounts off the purchase total. At the beginning of the week-end there were 400 coupons. Three hundred of these were for 10% discount, 63 were for 20% discount, ??? were for 30% discount and 5 were for 40% discount. Find the probability that the first customer who chooses an envelope will get a 20% discount. (Give your answer in decimals. Round to the nearest 2 decimal places, if needed.)
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.
The managers at Queen’s Fashions plan to hold a special promotion over Memorial Day weekend. Each customer who makes a purchase exceeding $100 will qualify to select an envelope from a large drum. Inside the envelope are coupons for percentage discounts off the purchase total.
At the beginning of the week-end there were 400 coupons. Three hundred of these were for 10% discount, 63 were for 20% discount, ??? were for 30% discount and 5 were for 40% discount.
Find the
(Give your answer in decimals. Round to the nearest 2 decimal places, if needed.)
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
