You have a fair unbiased coin. How many times on average do you need to toss it to getnheads in a row.

Spoiler : Probability Puzzles: Getting Heads in a Row

Printable View

- Feb 3rd 2013, 01:38 PMbroccoli7The Expected number of tosses to get N heads in a row
You have a fair unbiased coin. How many times on average do you need to toss it to get

*n*heads in a row.

Spoiler : Probability Puzzles: Getting Heads in a Row - Feb 3rd 2013, 03:45 PMchiroRe: The Expected number of tosses to get N heads in a row
Hey broccoli7.

Hint: The probability for n heads in a row will be 1/2^n. Think about the inverse of the probability and what it means frequency wise.