Statistics and Probability

Describe the shape of the data in the dot plot below.

• Symmetric

• Skewed Right

• Skewed Left

• Uniform

What kind of a question is this: You ask all 6th graders in your school, "How many hours of television did you watch this week?"

• Statistical question

• Non-Statistical question

To find the average of a set of numbers, add up all the items and divide by...

• 2

• The minimum

• The maximum

• The number of items

Find the mean of these numbers:
5, 11, 2, 12, 4, 2

• 4.1

• 6

• 4.5

• 4

What is the median of the following set of numbers: 3, 7, 9, 6, and 12?

• 6

• 7

• 9

• 5

What is the mean of the following set of numbers: 4, 8, 12, 16, 20?

Mathematical Equivalence

ON

If a bag contains 3 red marbles, 2 blue marbles, and 5 green marbles, what is the probability of picking a blue marble?

Dr. Jones is a dentist. He needs to report on the average number of cavities that his patients have.
1, 0, 1, 5, 6, 3, 4

• 3.33

• 2.85

• 3

• 3.5

What percent of students have a height between 58 inches and 60 inches?

• 25%

• 50%

• 75%

• 100%

What is the maximum value?

• 58

• 66

• 64

• 60