Probability Test Review

The number cube was rolled 50 times. How many times theoretically would you expect to see a 6?

• About 1

• About 6

• About 8

• About 10

When rolling a standard number cube, what is the theoretical probability of rolling a number less than 3?

• 1/3

• 1/6

• 1/2

• 2/3

A bag of marbles contains 10 Red, 8 Blue, and 2 White. What is the probability of drawing a red marble and a red marble out of the bag? (WITHOUT REPLACING the first marble.)

• 20

• 5/19

• 1/2

• 9/38

What is the probability that someone was on time to work on Monday and Tuesday?

• 0.7

• 0.21

• 0.49

• 1

Answer using a non-simplified fraction.

P(6th grade | guitar)

Mathematical Equivalence

OFF

P(6th grade | drums)

Mathematical Equivalence

OFF

What is the probability that someone was late on ONE of the TWO days?

• 0.10

• 0.42

• 0.49

• 0.18

The number cube was rolled 50 times and recorded in the table. Which statement accurately compares the theoretical probability to the actual results recorded?

• The theoretical probability of spinning a 1 is more than the actual result.

• The theoretical probability of spinning a 3 is less than the actual result.

• The theoretical probability of spinning a 4 is the same as the actual result.

• The theoretical probability of spinning a 6 is more than the actual result.

Based on the results in the table, what is the experimental probability of rolling a number less than 4?

• 16%

• 66%

• 50%

• 34%

Chris tosses three quarters up in the air. What is the probability that all three will land on tails?

• 1/2

• 1/6

• 1/8

• 3/8