Tom S. answered 09/30/20
Experienced, Patient Secondary School, College, and SAT/ACT Math Tutor
Hi Ange R., When you have a problem in steps, you multiply the probabilities for each step. Find the probability of picking a blue MM on the first step. Now remove a blue MM from your set and find the probability of picking a green MM next. Multiply these two probabilities together to get the answer. Tom S.