Question

A small town has three traffic lights in a row down its main street. The chance of any one light being green is 50%. What is the probability that all three traffic lights will be green at the same time?

1/2
1/4
1/8
1/1

Answer 1

One being green: 1/2 (as stated in the question)
Two being green simultaneously: 1/2 * 1/2 = 1/4
Three being green simultaneously: 1/2 * 1/2 * 1/2 = 1/8

Answer 2

Your answer will be 1/8 because if one is 50% and theres three lights... just kind of do the math