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It is known that 30% of all customers of a major credit card pay their bills in full before any interest charges are incurred. Suppose a simple random sample of 150 credit card holders is selected.

1) What is the probability that 30 or fewer customers pay their account balances in full before any interest charges are incurred?

2) What is the probability that between 40 and 50 customers pay their accounts balances in full before any interest charges are incurred?

3) What is the probability that more than 60 customers pay their accounts balances in full before any interest charges are incurred?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9104280

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