Range and Interquartile Range Mean Median Range

Which of the following best describes the process of finding the interquartile range for a set of data?

• Add the biggest and smallest numbers.

• Place the numbers in order from least to greatest and find the middle.

• Find the difference between the maximum and the minimum.

• Subtract the median of the upper quartile and the median of the lower quartile. Q3 - Q1

What do you do if there are two numbers in "the middle" when you are finding the median?

• Pick your favorite number

• Add the two numbers in the middle & then divide by two.

• They are both the median

• None of the above

Find the median of these numbers:

2, 5, 4, 3, 7, 5, 5,

• 4

• 5

• 3

• 6

What is the interquartile range of the data?

• 8

• 9

• 13

• 21

Calculate the interquartile range of the following data 17, 18, 18, 19, 20, 21, 21, 23, 25

• 3

• 4

• 5

• 8

The numbers of pages in eight different sixth grade math textbooks are shown below. Find the interquartile range of the data.

560, 532, 466, 728, 636, 512, 698, 444

• 168

• 178

• 106

• 116

• 284

What is the Interquartile Range of this data set? The lower (first) quartile is 19 and the upper (3rd) quartile is 56.

• 75

• 37

• 72

Calculate the interquartile range of the following data:
17, 18, 18, 19, 20, 21, 21, 23, 25

• 3

• 4

• 5

• 8

Which would be used to find the interquartile range?

Click on the correct

dots and submit

Calculate the interquartile range of the following data

17, 18, 18, 19, 20, 21, 21, 23, 25

• 3

• 4

• 5

• 8