<PRE><B>Question 134836</B>
If i flipped a fair coin 5 times, what is the probability of getting 3 heads.
Please show work..;)
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The 3 heads can happen in 5C3 = 10 ways
The probability of any one of the 3 head/2 tail patterns is (1/2)^3*(1/2)^2
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The total probability is 5C3(1/2)^3*(1/2)^2

= 10*(1/2)^5
= 10/32 
= 5/16
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Cheers,
Stan H.</PRE>