Descriptive Statistics

What is the range of this data?

• 30

• 40

• 50

• 60

How do you calculate Standard Deviation?

• Square the variance

• Divide an ordered data four equal parts

• Square root the variance

• Square the mean

What is the mode of the data

• 7

• 8

• 9

• 8 and 9

What is the range?

• 8

• 7

• 6

• 5

The variance is...

• 2.33

• 2.40

• 2.31

• 1.53

The standard deviation of the data is...

• 1.51

• 1.53

• 1.55

• 1.6

Which measures of central tendency would be the highest?

• mean

• median

• mode

The interquartile range is...

• 6.5

• 9

• 2.5

• 3

The variance is...

• 1.56

• 2.42

• 2.41

• 1.55