SOLUTION: 2. A shoe store’s records show that out of a 100 customers who made a purchase last week, 30 used credit cards to make payment. This morning 20 customers purchased shoes from the
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-> SOLUTION: 2. A shoe store’s records show that out of a 100 customers who made a purchase last week, 30 used credit cards to make payment. This morning 20 customers purchased shoes from the
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Question 622551: 2. A shoe store’s records show that out of a 100 customers who made a purchase last week, 30 used credit cards to make payment. This morning 20 customers purchased shoes from the store.
Find the probability that at least 12 of the customers used credit cards.
a) Define the random variable
b) What distribution will be used?
c) Represent the question as a probability statement.
d) Calculate the probability.
You need to show what you have already done to try to solve this. The amount of work we will do to help you is directly proportional to the amount of effort you can demonstrate.
John
My calculator said it, I believe it, that settles it
