Multiplication Rule for Probability

A jar contains 4 white chips, 5 purple chips, and 1 black chip. Chips are selected randomly one at a time without replacement. 
You want to select 3 chips all together. What is the probability of selecting 2 purple chips and then a black chip? 

• 1/36
• 1/50
• 1/12
• 3/50

The probability that s student owns a car is 0.65, and the probability that a student owns a computer is 0.82. What is the probability that the student owns a car and a computer? 

• 1.26
• .533
• .7927
• 1.47

Lilly is choosing 3 flowers for her mom, and they are randomly selected without replacement. There are 4 roses,  3 sunflowers, and 3 azalea. What is the probability of her picking 2 roses and a sunflower. 

• 1/20
• 1/30
• 8/125
• 3/10

A circuit to run a model railroad has 8 switches. Three are defective. If a person selects 3 switches at random and are independent of each other, then tests them, and then find the probability that all three switches are not defective.

• 5/53
• 5/28
• 0
• 125/512

Mrs. Regan has a 12% chance of making a freethrow. What is the probability she shoots twice and makes them?
round your answer to the nearest whole #

• 14%
• 1%
• 24%
• 5%

You have a 73% chance of passing any stats quiz. What is the probability you fail one quiz, then pass the next 3?
round your answer to the nearest whole # 

• 39%
• 11%
• 8%
• 32%

You pick two marbles from the bag of 9 marbles. What is the probability you pick both green if you replace the first marble before drawing the second marble?

• 16/81
• 1/6
• 4/27
• 12/72

A circuit to run a model railroad has 8 switches. Two are defective. If a person selects 2 switches at random and are Dependent of each other, then tests them, and then find the probability that both switches are defective. 

• 1/16
• 9/16
• 15/28
• 1/28

At Athens Country Club, 73% of the members play bridge, and 82% play swim. If a member is selected at random, find the probability that the member swims, and that the member plays bridge.

• 1.12
• .8902
• .5986
• .3143

Which event is not a dependent event?

• Picking 2 students to each be line leader and door holder from a group of 20 students
• Picking 2 marbles from a bag without replacing the first marble
• Picking 2 crayons from a box at the same time (simultaneously) 
• Picking an earring, replacing it, then picking a 2nd earring