Question

If a fair coin is tossed repeatedly, what is the probability that the third
head occurs on the nth toss?

Answer 1

Answer:

Most of the coin toss problems can be solved by using the concept of the fundamental theorem of counting.

Heads can be represented as

H

and tails can be represented as

T

. And then we can arrange these to find the required probability.

Answer and Explanation:

We are asked to find what is the probability that the third head occurs on the nth toss.

So, let's assume that there are

n

tosses.