Homework Help: probability

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?

probability - Reiny, Tuesday, May 10, 2011 at 10:59pm
So you want
HHHT

prob(HHHT) = (1/2)(1/2)(1/2)(1/2) = 1/16

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