Probability and Statistics Middle School Review

What is the MEDIAN of this set of data?

10, 90, 80, 60, 50, 40, 70, 30, 20, 100

• 50

• 60

• 55

• 45

What is the mean?

• happening the most

• the number in the middle

• biggest-smallest

• the average

The number of miles that Jenna cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the mean number of miles Jenna cycled?

• 31

• 36

• 39

• 41

Which interval has 400 employees?

• 33-43

• 0-10

• 77-87

• 66-76

How many students are represented by the histogram?  

• Cannot be determined

• 9

• 31

• 35

What is the shape of the distribution?

• Symmetric

• Left-skewed

• Right-skewed

• Uniform

What was the least number of goals scored?

• 1

• 0

• 12

• 2

How many students had more than 6 candy bars?

• 5

• 2

• 3

• 1

What is the RANGE of this data

• 40

• 95

• 90

• 100

Ticket sales for the next two days are 55 tickets and 68 tickets. Which statement about the data is true?

**Hint Range is the highest value minus the lowest value.

• The range stays the same.

• The range increases by two.

• The range decreases.

• The range doubles.