METHODS OF DATA ANALYSIS
MEASURES OF CENTRAL TENDENCY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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, 31, 37, 46, 29, 38What is the interquartile range of the data?
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8
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9
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13
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21
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Explanation:
Detailed explanation-1: -The interquartile range (IQR) is the difference between Q3 and Q1. In this case, IQR = 40-27 = 13. Therefore, the answer is 13.
Detailed explanation-2: -In order to calculate it, you need to first arrange your data points in order from the lowest to the greatest, then identify your 1st and 3rd quartile positions by using the IQR formula (N+1)/4 and 3 × (N+1)/4 respectively, where N represents the number of points in the data set.
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