OpenUp 6th Math 8.15 Practice Problems and Vocab

The ____ is one way to measure how spread out a data set is. We sometimes call this the IQR. (2 words)

How do you find the interquartile range?

• subtract the first quartile from the third quartile

• add the first quartile and the third quartile

• divide the first quartile from the third quartile

• multiply the first quartile and the third quartile

What is the interquartile range of this data set?

____ are the numbers that divide a data set into four sections that each have the same number of values.

What is the first quartile of this data set?

What is the second quartile of this data set?

What is the third quartile of this data set?

The ___ is the distance between the smallest and largest values in a data set.

for the data set 3, 5, 6, 8, 11, 12, the ___ is 9

Suppose that there are 20 numbers in a data set and that they are all different. How many of the values in this data set are between the first quartile and the third quartile?