Probability Practice

When rolling a die, what is the probability of rolling a 3?

• 1/6

• 3/6

• 1

• 1/2

Tags

CCSS.7.SP.C.7A

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

• 5/6
• 1/2
• 1/3
• 1/6

A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon?

• 3
• 1/10
• 3/10
• 30%

Tags

CCSS.7.SP.C.7B

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?

• 3/10

• 1/2

• 1/9

• 1/3

Tags

CCSS.7.SP.C.7B

What is the probability of flipping a coin

3 times and the coin landing on tails all 3 times?

• 1/8

• 1/4

• 1/2

• 3/4

In a drawer, there are 6 white socks, 4 black socks, and 2 brown socks. You pick out a sock, replace it, then pick out a 2nd sock. What is the probability that you will pick a brown sock, then black sock?

• 1/11

• 1/18

• 1/36

• 2/33

You roll two die.

What is the probability you will roll a 4, then roll a number less than 3?

• 1/36

• 1/18

• 1/9

• 1/6

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. You draw two marbles, without replacing them. What is the probability both marbles are purple?

P(both marbles are purple)

• 2/9

• 1/3

• 1/2

• 1/4

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. What is the probability of drawing an orange the first time, then a green marble?

P(Orange, then green)

• 1/15

• 2/15

• 3/31

• 1/5

A basket contains four apples and six peaches. You randomly select one piece of fruit and eat it. Then you randomly select another piece of fruit. What is the probability that both pieces of fruit are apples.

• 2/15
• 3/17
• 1/19
• 6/21