Probability and Box

Bag A contains 9 red marbles and 3 green marbles. Bag B contains 9 black marbles and 6 orange marbles. Find the probability of selecting one green marble from bag A and one black marble from bag B.

• 3/20
• 1/4
• 3/31
• 2/27

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. P(orange,green)

• 1/15
• 2/15
• 3/31
• 1/5

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement.P(both marbles are purple)

• 2/9
• 1/3
• 1/2
• 1/4

A jar contains 4 white chips, 5 purple chips, and 1 black chip. Chips are selected randomly one at a time, and are not replaced. P(purple then black)

• 1/18
• 2/5
• 3/7
• 4/9

A jar contains 4 white chips, 5 purple chips, and 1 black chip. Chips are selected randomly one at a time, and are not replaced.
P(black then white)

• 2/45
• 3/7
• 1/18
• 2/19

A jar contains 4 white chips, 5 purple chips, and 1 black chip. Chips are selected randomly one at a time, and are not replaced
P(2 whites)

• 2/15
• 3/17
• 4/19
• 5/19

A jar contains 4 white chips, 5 purple chips, and 1 black chip. Chips are selected randomly one at a time, and are not replaced.
P(white, then purple, then black)

• 1/36
• 2/39
• 5/41
• 6/43

There are six nickels and seven dimes in your pocket. You randomly pick a coin out of your pocket and then return it to your pocket. Then you randomly pick another coin. Find the probability that both times the coin is a nickel.

• 6/13
• 2/7
• 5/16
• 3/19

There are 15 boys in a class with 14 girls. Find the probability of selecting a girl then a boy

• 15/58
• 18/33
• 2/29
• 1/29

There are 40 ants total in a mans collection. He has 22 fire ants, 13 sugar ants and 5 carpenter ants. Find the probability of selecting a carpenter ant, and then a fire ant. 

• 11/156
• 30/121
• 18/51
• 9/137