Topics
8. Probability & Statistics
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United States of AmericaNC
Grade 7

8.06 Range and interquartile range (IQR)

Lesson
Practice

Interactive practice questions

Find the range of the following set of scores:

$10,19,19,7,20,14,2,11$10,19,19,7,20,14,2,11

Easy
< 1min

Find the range of the following set of scores:

$1.2703,1.4267,1.2500,1.2703,0.3309,1.4267,0.7080$1.2703,1.4267,1.2500,1.2703,0.3309,1.4267,0.7080

Medium
1min

Consider the data shown in the table:

Medium
< 1min

Look at the data sets below. Select the sets that have the same range.

Medium
< 1min
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Outcomes

NC.7.SP.3a

Calculate the measure of variability of a data set and understand that it describes how the values of the data set vary with a single number. o Understand the mean absolute deviation of a data set is a measure of variability that describes the average distance that points within a data set are from the mean of the data set. o Understand that the range describes the spread of the entire data set. o Understand that the interquartile range describes the spread of the middle 50% of the data.

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