Mean, Median, Mode, Range, and Standard Deviation

What is the median?

• 62

• 58

• 66

• 60

Which class has the higher test score median? 

• Class #1

• Class # 2 

• The medians are equal

• The median is not shown here. 

What is the interquartile range?

• 4

• 6

• 2

• 8

Which data set has the largest standard deviation?

• Set 1

• Set 2

• Set 3

• Set 4

This data is normally distributed.  What percent of the data is in the shaded region?

• 68%

• 95%

• 99.7%

• 50%

What is the median?

• biggest- smallest

• average

• the middle #

• # that happens the most

All of the below sets have the same mean.
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points closest to the mean?

• 1

• 2

• 3

• 4

The masses of six children are 34.5 kilograms, 42.6 kilograms, 39.8 kilograms, 40.1 kilograms, 53.4 kilograms, and 33.8 kilograms. Find the mean mass.

• 40.7 kg

• 40

• 41

• 50

Which of the following is a measure of variability?

• mean

• median

• mode

• standard deviation

If the standard deviation of a data set is 4, what is the variance?

• 2

• 16

• 4