Abag contains 5 yellow marbles, 7 pink marbles, and 3 purple marbles. gordon selects a marble without looking. what is the probability that he selects a yellow marble or a purple marble? a. b. c. d.

The probability that he selects a yellow marble or a purple marble is:

  8/15

Step-by-step explanation:

We are given that:

A bag contains 5 yellow marbles, 7 pink marbles, and 3 purple marbles.

Gordon selects a marble without looking.

we have to find  the probability that he selects a yellow marble or a purple marble

P(yellow marble or purple marble)= number of yellow or purple marbles/ no. of marbles

                                          = (5+3)/(5+7+3)

                                          = 8/15