Chapter 14.2, Problem 30E

$29-30$ Refer to the spinner in Exercises $21-22$.

Find the probability that the spinner has stopped on a number divisible by $3$, given that it has stopped on blue.

$21\text{-}22$ Refer to the spinner shown in the figure. Find the probability of the given event.

(a) The spinner stops on red.

(b) The spinner stops on an even number.

(c) The spinner stops on red or an even number.

(a) The spinner stops on blue.

(b) The spinner stops on an odd number.

(c) The spinner stops on blue or an odd number