Probability

1.If you spin the spinner shown, what is P(red or blue)?

• 3/4

• 1/2

• 0

• 1/4

2.A number cube is marked with 1, 2, 3, 4, 5, and 6 on its faces. If you roll the cube one time, what is P(2)?

• 1/6

• 2

• 1/3

• 1/2

3.There are six equally likely outcomes on the spinner. What is the probability of spinning blue?

• 1/6

• 2/4

• 1/3

• 1/2

An ordinary six-sided die is rolled. What is the probability that a number greater than four is rolled?

• 2/3

• 1/3

• 1/2

• 1/6

5.A certain word game contains a large 20-sided die with letters instead of numbers on the sides. If all of the vowels (a, e, i, o, and u) are on the die, then what is the probability of rolling a vowel?

• 1/4

• 3/20

• 1/5

• 1/20

1.Determining the probability of a coin landing heads up by actually tossing a coin several times is an example of _____.

• sample probability

• theoretical probability

• experimental probability

• outcome probability

Determining the probability of rolling a '4' or '5' on a number cube by examining the number of possible outcomes and the number of ways to roll a '4' or a '5' is an example of ___________.

• outcome probability

• theoretical probability

• sample probability

• experimental probability

Two number cubes are rolled. What is the probability that their sum is 6?

• 5/36

• 7/18

• 1/12

• 1/3

A spinner numbered 1 through 10 is spun 100 times. The results of the experiment are shown in the table below. What is the experimental probability of spinning an 8?

• 10/100

• 13/100

• 1/100

• 7/100

A spinner numbered 1 through 10 is spun 100 times. The results of the experiment are shown in the table above. What is the experimental probability of spinning a 5?

• 1/5

• 9/100

• 3/25

• 1/4