Thread: Coin Flip

A coin is flipped "n" times. What is the probability that exactly"h" heads emerge? Explain.

- I just want to make sure that I'm doing this right.

I have the sample space as 2*n and the P(s)= H/(2*n).

Is this correct??

Originally Posted by ccdelia7

A coin is flipped "n" times. What is the probability that exactly"h" heads emerge? Explain.

- I just want to make sure that I'm doing this right.

I have the sample space as 2*n and the P(s)= H/(2*n).

Is this correct??

No...

When you flip the coin 'n' times, the head 'h' can appear in ways.

So P(exactly 'h' heads) =

Originally Posted by ccdelia7

A coin is flipped "n" times. What is the probability that exactly"h" heads emerge? Explain.

- I just want to make sure that I'm doing this right.

I have the sample space as 2*n and the P(s)= H/(2*n).

Is this correct??

The probability of any particular distribution of n coin flips with order taken into account is . So in order to determine the number of coin flips with exactly n coming up heads the formula is .