a store finds that 30% of people who enter ghe store will make a purcahse. during...

a store finds that 30% of people who enter ghe store will make a purcahse. during a day 80 people enter the store.

a) find the probabilty that at least 30 people will make a prchase

b) find the expected nimber of people who NOT make a purchase

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jeff jeffy answered 2 years ago

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