Question
There are 10 purple, 5 yellow, 2 green, and 3 red jelly beans in a bowl. Write a sentence that explains how likely it is for a purple, red, or yellow to be chosen in one pick.
Answers
PsyDAG
Either-or probabilities are added.
10/20 + 3/20 + 5/20 = ?
10/20 + 3/20 + 5/20 = ?