Question

If you flip a coin three times, the possible outcomes are HHH, HHT, HTH, HTT, THH, THT, TTH, TTT. What is the probability of getting at least one head?

A. 4/9

B. 5/6

C. 7/8

D. 5/8

Answer 1

7/8

Explanation:

Since the only case where we don't get a head is TTT. And in all other cases, there is at least 1 head, so the probability of getting at least one head is 7/8 ( we get at least one head in 7 out of 8 cases)