Asked by gokul | 11th Apr, 2014, 09:11: PM
The probability of getting 15 heads for A is same as the probability of getting 30 - 15 = 15 heads for B.
Thus, the probability that A and B both obtain the same number of heads is equal to the sum of the heads of A and B.
That is, the probability of getting n heads from 2n tosses is
Thus, the probability that both obtain the same number of heads is
Answered by | 19th Apr, 2014, 10:02: AM
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