### Home > MC2 > Chapter 7 > Lesson 7.1.5 > Problem 7-48

There are

Getting a purple gumball.

The probability of getting a purple gumball is the number or purple gumballs divided by the total number of gumballs.

Getting either a purple or a green gumball.

The probability of getting either a purple or a green gumball is the sum of the probability of getting a purple gumball and the probability of getting a green gumball.

*Not*getting a green gumball.What is the probability of getting a green gumball?

Since you can either get a green gumball or not get a green gumball, the probability of not getting a green gumball is

(or ) minus the probability of getting a green gumball. Getting either a purple or a white gumball.

What is the probability of getting a purple gumball?

A white gumball?See (b).