The Machine Has Just Been Filled with 50 Black, 150

Multiple Choice

The machine has just been filled with 50 black, 150 white, 100 red and 100 yellow gum balls that have been thoroughly mixed. Sue and Jim approached the machine first. They both said they wanted red gum balls. What is the likelihood they will get their wish?

A) 0.50
B) 0.062
C) 0.33
D) 0.75
E) None of the choices are correct