Question: Please help me with the following two statistic questions 1) According to a recent survey, 30% of credit card holders pay off their balances in

Please help me with the following two statistic questions

1) According to a recent survey, 30% of credit card holders pay off their balances in full each month. If a random sample of 400 credit card holders is taken, what is the probability that

A) At least 110 of them pay off their balances in full each month? B) At least 125 and but less than140 of them pay off their balances in full each month?

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