Exploring Probability and Events

A bag contains 5 red marbles, 3 blue marbles, and 2 green marbles. If you pick one marble at random, what is the probability that it is blue?

Tags

CCSS.7.SP.C.7B

A coin is flipped 100 times and lands on heads 56 times. What is the experimental probability of getting heads?

Tags

CCSS.7.SP.C.6

A spinner has 4 equal sections labeled 1, 2, 3, and 4. If you spin the spinner 50 times and it lands on 3 a total of 12 times, what is the experimental probability of landing on 3?

Tags

CCSS.7.SP.C.6

A bag contains 4 yellow, 5 green, and 1 purple marble. If you draw one marble, what is the probability that it is not purple?

A die is rolled twice. What is the probability of getting a 2 on the first roll and a 5 on the second roll?

A coin is flipped and a number cube is rolled. What is the probability of getting heads and a number greater than 4?

Which of the following is the correct sample space for tossing two coins?

• HH, HT, TH, TT

• H, T

• HH, TT

• HT, TH

A bag contains 2 red, 3 blue, and 1 green marble. If you draw two marbles one after the other without replacement, which of the following lists all possible outcomes?

• RR, BB, GG

• RB, RG, BR, BG, GR, GB

• RB, RG, BR, BG, GR, GB, RR, BB, GG

• RB, RG, BR, BG, GR, GB

A tree diagram is used to show the possible outcomes of flipping a coin and then rolling a die. How many outcomes are in the sample space?

• 2

• 6

• 8

• 12

Tags

CCSS.7.SP.C.8B

A bag contains 3 red, 2 blue, and 1 yellow marble. You draw a marble, record its color, and then replace it. You repeat this process 60 times and get the following results: 28 red, 20 blue, and 12 yellow. Based on this data, what is the experimental probability of drawing a yellow marble, and how does it compare to the theoretical probability?