<PRE><B>Question 889622</B>
A coin is tossed four times. Show the sample space and find the probability of getting a simple event of three heads and one tails. 
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Sample Space::
4 heads:: hhhh
3 heads:: thhh,hthh,hhth,hhht
2 heads:: tthh,htth,hhtt,htht,thth,thht
1 head::: httt,thtt,ttht,ttth
0 heads:: tttt
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P(3heads and one tail) = 4/16 = 1/4
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Cheers,
Stan H.
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