Quartiles of a Data Set

Given the data: 136, 150, 119, 150, 125, 140.
Find the upper quartile (Q3). (Hint... put the numbers in order and find the median to help you find Q3)

•  125
• 150
• 139.5
• 143

Find the lower quartile (Q1) of the following set of scores 6, 7, 8, 9, 11, 13, 15

• 13
• 7

• 9
• 6

Third Quartile is

• a measure used to describe the distribution of data.
• also called the upper quartile.
• also called the lower quartile.
• the sum of the numbers in a set of data divided by the number of pieces of data.

First Quartile is

• also called the upper quartile.
• a value that is much higher or much lower than the other values in a set of data.
• also called the lower quartile.
• the value appearing at the center of a set of data that has been sorted in numerical order.

The median of the lower half of a data set; also called the lower quartile.

• second quartile
• third quartile
• first quartile
• interquartile range

33, 25, 42, 25, 31, 37, 46, 29, 38
What is the third quartile (UQ) of the data?

• 37
• 38
• 40
• 46

find the lower quartile of the following set of scores12, 9, 4, 6, 5, 8, 9, 4, 10, 2

• 10
• 4
• 9
• 6

What is the term for the median of the lower half of the data?

• Lower Quartile
• Upper Quartile
• Median
• Maximum

What is the term for the median of the upper half of the data?

• Upper Quartile
• Lower Quartile
• Median
• Minimum

Find the lower quartile of the following set of scores12, 9, 4, 6, 5, 8, 9, 4, 10, 2

• 10
• 4
• 9
• 6