SOLUTION: An experiment consists of tossing a quarter, a dime, and a nickel. What is the probability that all three coins come up the same (ie all three come up heads or all three come up t

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Question 384951: An experiment consists of tossing a quarter, a dime, and a nickel. What is the probability that all
three coins come up the same (ie all three come up heads or all three come up tails)?

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
We have P(3 heads) = (1/2)^3 = 1/8. Likewise P(3 tails) = 1/8, by symmetry. The probability is 1/8 + 1/8 = 1/4.