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 of a set of data is 18. Find the new interquartile range if each value in the set of data is multiplied by 4.
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18
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72
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288
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54
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Explanation:
Detailed explanation-1: -Hence, the required answer is 21.
Detailed explanation-2: -The interquartile range is the difference between the first quartile 4 and the third quartile 15 . In this case, the difference between the first quartile 4 and the third quartile 15 is 15−(4) .
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