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Problem 1159. Coin Tossing: Probability of Same Heads for N tosses

Created by Richard Zapor

A pair of physicists toss a coin n times each.

What is the probability that they tossed the same number of heads?

Input: N % number of tosses

Output: P

Examples:

N=1 P=0.5;

N=2 P=0.375

Test Suite will round to 6 places

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Solution Statistics

24 correct solutions 10 incorrect solutions
Last solution submitted on Jul 11, 2014

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