Quartiles & the Interquartile Range: Definition, Formulate & Examples

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

Find the first quartile for the following data set:

7, 9, 13, 4, 18, 3, 9, 10, 15, 8, 2, 6, 9

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1.

Find the second quartile, or the median, for the following data set:

7, 9, 13, 4, 18, 3, 9, 10, 15, 8, 2, 6, 9

2.

Find the interquartile range for the following data set:

7, 9, 13, 4, 18, 3, 9, 10, 15, 8, 2, 6, 9

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About This Quiz & Worksheet

Can you find the first quartile of a given data set? How about the second quartile? Use this quiz and worksheet to find out.

Quiz & Worksheet Goals

Prepare to answer questions on the topics listed below:

  • Identifying the interquartile range for a given data set
  • Term for a group of values that divide a data set into groups of four
  • Name of the value represented by the difference between the upper and lower quartile values

Skills Practiced

  • Defining key concepts - make sure you can match a definition with the right term, like the word for the values that divide a set into groups of four
  • Problem solving - use what you've learned to find the first and second quartiles for provided data sets
  • Knowledge application - use your knowledge to answer questions about how to find the interquartile range

Additional Learning

Check out our lesson called Quartiles & the Interquartile Range: Definition, Formulate & Examples for more information about dividing data sets. You'll learn about the following:

  • What a median is
  • The three steps to use to find the quartiles of a set
  • Why to consider quartiles as cutoff points
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