Understanding Interquartile Range

What does the interquartile range (IQR) represent in a data set?

• The sum of the data set

• The average of the data set

• The spread of the middle 50% of the data

• The spread of the entire data set

Tags

CCSS.6.SP.B.5C

What is the first step in finding the interquartile range?

• Finding the median

• Putting the data in ascending order

• Finding the upper quartile

• Finding the lower quartile

Tags

CCSS.6.SP.B.5C

In the first example, what is the median of the data set?

• 50

• 18

• 32

• 38

Tags

CCSS.6.SP.B.5C

How do you find the lower quartile (Q1) in a data set?

• Find the median of the entire data set

• Find the middle number of the lower half of the data set

• Find the middle number of the upper half of the data set

• Subtract the smallest number from the largest number

Tags

CCSS.6.SP.B.5C

What is the interquartile range (IQR) in the first example?

• 38

• 18

• 32

• 50

Tags

CCSS.6.SP.B.5C

In the second example, how many numbers are in the data set?

• 8

• 7

• 12

• 10

Tags

CCSS.6.SP.B.5A

How do you find the median when the data set has an even number of elements?

• Choose the middle number

• Choose the average of the two middle numbers

• Choose the smallest number

• Choose the largest number

Tags

CCSS.6.SP.B.5C

What is the lower quartile (Q1) in the second example?

• 8

• 6

• 14

• 11

Tags

CCSS.6.SP.B.5C

What is the upper quartile (Q3) in the second example?

• 14

• 8

• 6

• 11

Tags

CCSS.6.SP.B.5C

What is the interquartile range (IQR) in the second example?

• 11

• 8

• 14

• 6

Tags

CCSS.6.SP.B.5C