Question

A machine contains 125 gumballs. If the probability of getting a red gumball is 3/5. What is the probability of NOT getting a red gumball?
Question 15 options:


5/3


2/5


1/125


75/125

Answer 1

Let the probability of getting a red gumball be P(R) and let the probability of not getting a red gumball be P(NR). Then we can write:
P(R) + P(NR) = 1 ...........(1)
Now you need to plug the given value of P(R) into equation (1) and solve for P(NR).