Probability Questions

What is the probability of flipping a coin twice and landing on tails both times? (leave answer in fraction form in lowest terms)

• 1/2

• 2/2

• 4/1

• 1/4

What is the probability of picking a blue marble, putting it back in the bag, then picking a red marble? (leave answer in fraction form in lowest terms)

• 9/49

• 16/49

• 12/42

• 12/49

What is the probability of picking a green marble, keeping it, then picking another green marble? (leave answer in fraction form in lowest terms)

• 9/49

• 1/7

• 3/14

• 6/42

What is the P(blue)?

(leave answer in fraction form in lowest terms)

• 1/3

• 1/6

• 1/2

• 2/6

If you spin two times, what is the probability of landing on green both times? (leave answer in fraction form in lowest terms)

• 1/6

• 1/9

• 1/36

• 1/30

Des buys a pack of Starbursts that has 3 orange, 6 pink, 1 yellow, and 5 red Starbursts.  She puts the candy in the bowl.  If she reaches in and grabs two Starbursts without putting one back, what is the probability that she will pick a pink and then a yellow?

• 1/35

• 7/210

• 6/225

• 2/75

What is the probability of picking a green marble, keeping it, then picking green again? (leave answer in fraction form in lowest terms)

• 1/7

• 1

• 1/49

• 0

What is the probability of picking a red marble and keeping it, picking another red marble and keeping it, then picking a blue marble? (leave answer in fraction form in lowest terms)

• 2/105

• 4/343

• 2/63

• 4/210

A fruit basket contains 9 apples, 3 bananas, 7 oranges, 5 pears, and 1 grapefruit. Humperdink randomly chooses a fruit, does not replace it, then chooses another. What is the probably that he chose two pears? (leave answer in fraction form in lowest terms)

• 1/30

• 4/125

• 1/10

• 9/49

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. They will draw 2 times and draws are made without replacement. What is the Probability of both marbles being purple?

• 2/9

• 1/3

• 1/2

• 1/4