Probability STAAR Review

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

In a simple experiment, a coin is flipped 100 times and lands on heads 60 times. What is the experimental probability of getting heads?

• 2/5

• 1/2

• 3/5

• 7/10

A die is rolled once. What is the theoretical probability of rolling a number greater than 4?

A spinner is divided into 4 equal sections numbered 1 to 4. If the spinner is spun 50 times and lands on 3 a total of 15 times, what is the experimental probability of landing on 3?

• 3/20

• 1/4

• 3/10

• 7/20

A jar contains 4 red, 3 blue, and 3 yellow balls. If a ball is drawn at random, what is the probability that it is not red?

In a class of 30 students, 18 are girls. If a student is chosen at random, what is the probability that the student is a boy?

• 2/5

• 1/2

• 3/5

• 7/10

A card is drawn from a standard deck of 52 cards. What is the probability of drawing a heart?

A coin is flipped and a die is rolled. What is the probability of getting heads and a 4?

A bag contains 6 apples and 4 oranges. If a fruit is picked at random, what is the probability that it is an apple?

A box contains 5 red, 7 blue, and 8 green balls. If a ball is drawn at random, what is the probability that it is blue?