Measures of Center and Measures of Spread

What is the IQR?

• 5.5

• 4

• 4.5

• 6

Which car club has the higher median?

• Cruisers

• Car Hops

What is the outlier in this data set?

{23, 60, 30, 21, 25, 35, 29}

• 35

• 21

• 30

• 60

75% of the Cruisers went to more than 13 car shows. True or False?

• True

• False

The __________ is the middle number, or the mean of the two middle numbers, of the ordered data in a set.

• mean

• range

• median

• mean absolute deviation

The __________ of the data set is the sum of the data divided by the number of pieces of data.

• third quartile

• mean

• measures of center

• mode

The __________ is the number or numbers that occur most frequently in a data set.

• average

• mode

• quartiles

• mean

Numbers called __________ can be used to describe the center of data.

• measures of center

• quartiles

• outliers

• range

The _________ is the median of the lower half of the set of data.

• median

• mean

• first quartile

• mode

The __________ is the median of the upper half of the set of data.

• mode

• average

• outliers

• third quartile