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posted by john on Wednesday, February 22, 2012 at 1:06pm.
Three pennies are tossed into the air.What is the probability they will match either heads-heads-heads or tails-tails-tails when they land?
all heads .5*.5*.5 = .125 = 1/8 all tails same 1/8 sum = 2/8 = 1/4
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