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GMAT Problem Solving (PS) | Re: If a certain coin is flipped, the probability that the coin

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Bunuel wrote:

marcodonzelli wrote:
If a certain coin is flipped, the probability that the coin will land heads is 1/2. If the coin is flipped 5 times, what is the probability that it will land heads up on the first 3 flips and not on the last 2 flips?

A. 3/5
B. 1/2
C. 1/5
D. 1/8
E. 1/32


We want the probability that coin will land heads upon the first 3 flips and noton the last 2 flips . So there isONLY one favorable outcome , namely heads upon the first 3 flips and tails upon the last 2 flips : HHHTT.

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