Simple Probability & Complements Video Notes

There are 10 marbles in a bag. 4 are blue and 6 are red. What is the probability of selecting a red marble?

• 1

• 3/5

• 2/5

• 2/3

What is the probability of not spinning a 2 or a 3? P'(2 or 3)

• 3/4

• 1/4

• 1/8

• 3/8

• 7

• 7/20

• 7/10

• 3/20