Statistics Practice

How many 7th graders had an IQ score in the 81-90 range?

• 13

• 6.5

• 3

• 42

The mean of this data set is 17.8. What would happen to the mean if 40 was added to the data set?

• The mean would not change

• The mean would go up

• The mean would go down

Which class has the higher median?

• 1st period

• 2nd period

• They have the same median

• 1
• 5
• 7
• 8

Identify the outlier for the given data?
23, 34, 27, 7, 30, 26, 28, 31, 34

• 7
• 23
• 31
• 34

Find the Median of the data set

• 82
• 86
• 88
• 92

Find the median of plot B

• 30
• 14
• 28
• 16

What is the interquartile range of plot A?

• 6
• 8
• 15
• 28

What is the interquartile range?

• 6

• 4

• 2

• 8

Which restaurant has a higher median wait time?

• Lucy's Steakhouse

• Gary's Grill

• They are the same

• Impossible to tell