Question

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Four coins are tossed. What is the probability that there will be 3 heads and 1 tail?

Answer 1

The probability of getting 3 heads would be 1/2 x 1/2 x 1/2 since there is only 1/2 probability a head or tail will be tossed during each coin. that makes 1/8. for 1 tail, it would just be 1/2 since there's only one coin. multiply 1/8 x 1/2 = 1/16. that's your answer.

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Answer 2

The probability of getting 3 heads would be 1/2 x 1/2 x 1/2 since there is only 1/2 probability a head or tail will be tossed during each coin. that makes 1/8. for 1 tail, it would just be 1/2 since there's only one coin. multiply 1/8 x 1/2 = 1/16. that's your answer.