Data Analysis Math

Find the Median

• 98

• 93

• 78

• 85

What percent of the data is between 25 and 30 on the number line?

• 25%

• `50%

• 75%

• 100%

What is the interquartile range (IQR)?

• 4

• 64

• 60

• 8

What percent does each of the 4 sections contain on a box and whisker plot?
Hint: Look at your notes!

• 25%

• 50%

• 75%

• 100%

What is the median?

• 62

• 58

• 66

• 60

What is the interquartile range (IQR)?

• 4

• 64

• 60

• 8

What is the range of the data?

• 4

• 8

• 6

• 2

If 20 is added to the data set below, which statement will be true?

50, 55, 55, 60, 62

• The median will stay the same.

• The median will increase by 2.5.

• The median will decrease by 2.5.

The data set below has an outlier of 42.
2, 5, 12, 15, 19, 4, 6, 11, 16, 18, 12, 12, 42
What effect does removing the outlier have on the distribution of the data?

• The mean will decrease

• The median will decrease

• The mean will increase

• The median will increase

Given the following data set
6, 9, 12, 14, 7, 9, 6, 8, 25, 12, 14
What is the mean of the data set without the outlier(s)?

• 9.2

• 9.7

• 11.1

• 12.4