METHODS OF DATA ANALYSIS
MEASURES OF DISPERSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The interquartile range (IQR) of a data set is the difference between the third and first quartiles. It represents the range of the middle half of the data.
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Interquartile range (IQR) is the range (difference) between the third quartile and the first quartile. Just as range is found by subtracting the smallest data point from the largest data point, interquartile range is the range of the middle quartile of the data set.
Detailed explanation-2: -Interquartile Range and Five Number Summary The difference between the first and third quartiles, called the interquartile range, shows how the data is arranged about the median. A small interquartile range indicates data that is clumped about the median.
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