Refer to the spinner shown. The spinner is divided into sections with the same area. a. What is the theoretical probability that the spinner stops on a multiple of 3? Express your first answer as a fraction in simplest form, and

your second answer as a percent.

b. You spin the spinner 30 times. It stops on a multiple of 3 twenty times. What is the experimental probability of stopping on a multiple of

3? Express your first answer as a fraction in simplest form, and round your percent answer to the nearest whole percent.