SOLUTION: What is the probability of obtaining at least one head in 3 flips of a coin?
Algebra.Com
Question 604753: What is the probability of obtaining at least one head in 3 flips of a coin?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
the probability of NO heads (3 tails) is (1/2)^3 or 1/8
so the probability of at least one head is 1-(1/8) or 7/8
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