Determine the Appropriate Measure of Center and Variability

A data set consists of the numbers 2, 2, 5, 6 and 15.  Which statement is true for this data?

• median > mean

• mean = mode

• mode < median

• median = mode

Which class has the higher test score median? 

• Class #1

• Class # 2 

• The medians are equal

• The median is not shown here. 

For which group of data does the mean equal the mode?

• 4, 5, 5, 8

• 4, 4, 6, 6

• 4, 5, 6, 6

• 4, 5, 5, 6

The list below shows the number of words per minute students in Mrs. DeFelice's class typed last week:
42, 55 ,62, 39, 38, 70, 54, 56, 73.
Which would change the range from 35 to 38?

• A new student types 38 wpm

• The student that  typed 39 wpm moved

• A new student types 35 wpm

• The student that typed 73 wpm movedd

Which measure of variability should you use?

• IQR

• standard deviation

Which measure of center should you use?

• mean

• median

Which measure of variability should you use?

• IQR

• standard deviation

Which measure of variability should you use?

• IQR

• standard deviation

Which measure of center should you use?

• mean

• median

Which is true?

• Mean < Median

• Mean = Median

• Mean > Median