
Home > MC2 > Chapter 7 > Lesson 7.1.5 > Problem 7-48
7-48.
The probability of getting a purple gumball is the number or purple gumballs divided by the total number of gumballs.
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.
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 1 (or 100%) minus the probability of getting a green gumball.
What is the probability of getting a purple gumball?
A white gumball?
See (b).