John B. answered 03/30/20
Former math teacher and tutor for ACT Math.
6choose5 (.92)5 (.08)1 + 6choose6 (.92)6 =. .316 + .606 = .922
Jaiden I.
asked 03/28/20The percentage of people who buy lottery ticket at least once a year is 92% on average. If 6 people are randomly selected, what is the probability that at least 5 of them buy a lottery ticket at least once a year? Express it as a decimal number accurate to 4 decimals.
John B. answered 03/30/20
Former math teacher and tutor for ACT Math.
6choose5 (.92)5 (.08)1 + 6choose6 (.92)6 =. .316 + .606 = .922
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