Inferring Statistics

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 number from the data set 1, 1, 1, 2, 2, 3, 4, 5, 5, and 25 is an outlier?

What is the mean absolute deviation of 13, 14, 17, 28, and 28?

• 6.4

• 8.6

• 4.6

• 6.3

Which has a larger IQR?

• Zach

• Steven

• They have the same IQR

Find the Mean Absolute Deviation:  5, 11, 2, 7, 16.  The Mean is 8.2 

• 3.2

• 2.8

• 1.2

• 4.2

What is the value of the upper quartile (Q3)?

• 3

• 8

• 10

• 15

What is the approximate spread of the data?

• 30

• 50

• 85

• 78

Which best represents the Interquartile Range

• 15

• 93

• 85

• 78

What is the range of the dot plot?

• 9

• 5

• 4

• 6

What is the mean of the following list of numbers?

• 9

• 10

• 11.5

• 12.5