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posted by kristy on Tuesday, May 10, 2011 at 10:47pm.
if a fair coin is tossed 4 times, what is the probability of getting heads the first 3 times, and tails the fourth itme?
So you want HHHT prob(HHHT) = (1/2)(1/2)(1/2)(1/2) = 1/16
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