Find the probability of getting 8 heads in 12 tosses of a coin.

Expert Solution

when a coin is flipped, we get 2 outcomes = head or tail

If a coin is tossed 12 times, the maximum probability of getting heads is 12.
But, 12 coin tosses leads to number of possible sequences of heads & tails.

The number of possible sequences of heads and tails in 12 coin tosses is:

The number of ways that such a sequence could contain 8 heads is the number of ways of choosing 8 out of 12

that is

nCr = n! / r! * (n - r)!,

12C8 =

So the probability of getting 8 heads in 12 coin tosses is

orchestra answered 2 years ago

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