Mon January 07, 2013 By: Tarun Garg

A die is rolled ten times. Find the number of ways so that outcomes always contain 1,2,3.

Expert Reply
Mon January 07, 2013
as in case outcome is 1,2,3
so probability in each case=1/2
 in rolling dice 10 times probability that outcomes will be 1,2,3=(1/2)^10
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