Question

A fair coin is tossed 7 times. Compute the probability of tossing 7 heads in a row.

Enter your response as a reduced fraction.

Answer 1

1/128

Explanation:

The probability of tossing a head is 1/2.

Each toss is an independent event.

We toss 7 times and get a head each time.

1/2 * 1/2* 1/2* 1/2* 1/2* 1/2* 1/2

1/128