Review for Statistics and Probability Test

What is the interquartile range of the data?

• 8

• 9

• 13

• 21

You randomly choose one marble from the bag. What is the theoretical probability of choosing a blue marble?

What is the theoretical probability of spinning a red or a yellow?

Which class did better on the test?

• 1st period

• 2nd period

• They both performed the same

Find the MAD:

57, 38, 54, 48, 25, 36

• 43

• 20

• 10

• 12

Three coins are flipped. Using the tree diagram, how often would you expect to flip 1 tails and 2 heads (in any order)? Write your answer as a fraction, decimal, or percent.

What is the P( not purple) on this spinner?

• 2/5

• 1/5

• 4/5

• 3/5

A die is rolled once.  What is the probability of rolling a 5? Your answer should be a fraction in simplest form.

• 1/6

• 1/3

• 2/5

• 5/6

A die is rolled once.  What is the probability of rolling a number less than 3? Your answer should be a fraction in simplest form.

• 1/3

• 2/6

• 3/6

• 1/6

A bag has 3 red marbles, 2 blue and 4 green and 1 yellow. What is the theoretical probability of pulling a red?

• 3/10

• 3/9

• 1/9

• 1/3