Question

Three coins are tossed in succession. What is the probability of heads-tails-heads?

1/2
1/6
1/8

Answer 1

1/8.

Explanation:

Answer 2

1/8.

Explanation:

The probability of of a head (and a tail) in one toss of a coin being obtained is 1/2.

Each toss is independent of the others so we multiply the probabilities.

So Prob(Head - tail - head) = 1/2*1/2*1/2 = 1/8.