m6 Review

Which of the following is a measure of central tendency?

• Variance

• Mean

• Standard deviation

• Interquartile range

What is the median of the data set: 3, 5, 7, 9, 11?

• 5

• 7

• 9

• 8

Which measure of central tendency is best used when there are outliers in a data set?

• Mean

• Mode

• Median

• Standard deviation

In the data set: 2, 2, 3, 3, 3, 4, 4, 5, 5, 6, what is the mode?

• 2

• 4

• 3

• 5

Which measure of dispersion represents the average distance between each data point and the mean?

• Range

• Variance

• Standard deviation

• Coefficient of variance

The range of the data set 4, 9, 12, 15, 17 is:

• 13.5

• 10

• 14

• 13

What is the coefficient of variation if the mean of a data set is 50 and the standard deviation is 5?

• 0.1

• 0.5

• 10

• 0.02

What is the interquartile range? 4,8,15,16,23,42,50,55,70

• 45

• 35

• 41

• 50

What is the standard deviation of a data set (round to 2 decimal places) 4,8,15,16,23,42,50,55,70?

• 21.79

• 22.06

• 20.48

• 18.67

In a data set, what is the variance (round to 2 decimal places) 4,8,15,16,23,42,50,55,70?

• 486.69

• 500.56

• 432.45

• 476.25