Probability Problems

Question

Question #6:

A group of people were asked if they had run a red light in the last year. 196 responded "yes" and 91 responded "no." Find the probability that if a person is chosen at random from this group, they have not run a red light in the last year.

Answer 1

Can't answer as to whether they have run a red light, only if they have responded yes or no to the question.

Probability of picking someone who responded "no" to the question would be

91 / 287. or .3171. (31.71%)