Probability Without Replacement

Jim and Sue each take a driving test.

The probability that Jim will pass the driving test is 0.7

What is the probability he fails the test?

Terri has 7 pens in a box.

2 of the pens are blue, 5 of the pens are red.

Terri takes a random a pen from the box.

What is the probability that she picks a red pen?

(Give answer as a fraction)

Find P(MM)

Find P(OL)

• 0.9

• 0.09

• 1.0

• 0.81

What is the probability of drawing a 2, then drawing another 2? (no replacement--dependent event)

• 2/8 = 1/4

• 2/56 = 1/28

• 1/7

• 3/7

What is the probability of drawing a 1, then drawing a 6? (no replacement--dependent event)

• 6/56 = 3/28

• 3/7

• 2/8 = 1/4

• 8/56 = 1/7

A bag has 2 yellow marbles and 8 brown marbles. Nancy takes out two marbles without replacing the marbles. What is the probability that they will both be yellow?

• 2/19

• 1/10

• 1/45

• 2/90

An urn contains 4 red marbles and 7 blue marbles. Two marbles are drawn at random. What is the probability that the first is red and the second is blue if the marbles are drawn without replacement?