Math and Arithmetic
Statistics
Probability

What is the probability of tossing 2 heads and 2 tails with a coin tossed 4 times?

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Answer

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Wiki User
04/28/2010

When h=head, t=tails

First toss: heads/tails (1h/1t)

Second toss: heads/tails (2h/1h1t*2/2t)

Third toss: heads/tails (3h/2h1t*3/1h2t*3/3t)

Fourth toss: heads/tails (4h/3h1t*4/2h2t*6/1h3t*4/4t)

In short, 1+4+6+4+1=16

Chances of getting 2 heads and 2 tails = 6/16 * 100% = 37.5%