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Lesson: Finding the Quartiles of a Data Set

In this lesson, we will learn how to find the median and upper and lower quartiles of a data set.

Question Video: Determining the Median and Quartiles of a Data Set

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Worksheet: Finding the Quartiles of a Data Set • 13 Questions

Q1:

Determine the median and quartiles of the following set of data: 56, 55, 90, 50, 41, 84, 68, 75, 92, 50, and 71.

A The median is 68, and the quartiles are 50 and 84.
B The median is 68, and the quartiles are 52.5 and 79.5.
C The median is 71, and the quartiles are 55 and 90.
D The median is 69.5, and the quartiles are 50 and 84.

Q2:

Determine the median and quartiles of the following set of data: 1.8, 1.6, 1.1, 2.4, 0.6, 1.3, 2.9, 1.5, 0.4, 1.9, 2.9.

A The median is 1.6, and the quartiles are 1.1 and 2.4.
B The median is 1.6, and the quartiles are 0.6 and 1.9.
C The median is 1.8, and the quartiles are 1.1 and 2.4.
D The median is 1.6, and the quartiles are 1.3 and 2.9.

Q3:

Determine the median and quartiles of the following set of data: 1 350, 1 400, 1 250, 1 050, 1 450, 1 150, 1 000.

A The median is 1 250, and the quartiles are 1 050 and 1 400.
B The median is 1 250, and the quartiles are 1 150 and 1 350.
C The median is 1 350, and the quartiles are 1 050 and 1 400.
D The median is 1 250, and the quartiles are 1 100 and 1 375.

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