Compound Probability

What is P(red, green) ?

• 2/48

• 2/6

• 1/8

• 1/24

Noah has the spinner pictured here and a bag of marbles filled with 5 red marbles, 3 green marbles, and 1 blue marble.

What is the probability that Noah spins red on the spinner and picks a red marble out of the bag?

• 5/36

• 1/4

• 5/9

• 6/13

You roll a six sided die. What is the probability of rolling an even number two times in a row?

• 9/36

• 3/6

• 6/12

• 1/4

Cinthya flips a coin then rolls a number cube.

What is P(5, heads) ?

• 1/12

• 1/2

• 1/4

Ethan flips both coins.

What is P(tail, tails) ?

You are at the movies with your friends and decided to buy a small bag of gummy bears. There are 4 red bears, 5 green bears, and 3 yellow bears in the bag. What is the probability that you will get yellow gummy bears and then red gummy bears?

• The probability is 3/11

• The probability is 1/11

• The probability is 3/132

• The probability is 3/12

There are 6 red marbles, 5 green marbles, and 4 yellow marbles in a bag. If Joe picks 2 marbles one after the other without replacement, then what is the probability that both are red in color?

• 2/5

• 1/21

• 4/25

• 1/7

There are 2 violet balls and 4 pink balls in a bag. If two balls are drawn one after the other, then what is the probability of getting violet first and pink next, if the first ball drawn is replaced?

• 1/3

• 2/9

• 1/6

• 1/4

A jar contains 2 green marbles, 4 blue marbles, 3 yellow marbles, and 2 black marbles. A marble is chosen at random from the jar and replaced. Then a second marble is chosen at random. Find the probability of the first marble being green and the second marble being yellow.

• 4/121

• 8/121

• 3/121

• 6/121

You roll a six sided die. What is the probability of rolling an even number three times in a row? 

• 3/100

• 1/2

• 1/6

• 1/8