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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Which of the following is a characteristic of the range? Check all that apply.
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All values in the distribution are used in the calculation.
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It is influenced by extreme values.
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It is dependent on the mean.
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It is easy to compute and to understand.
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Explanation:
Detailed explanation-1: -Relative measures include coefficients of range, quartile deviation, variation, and mean deviation. Hence, Quartile is not the measure of dispersion.
Detailed explanation-2: -Range is the simplest measure of dispersion. Determination of range is based on only two values in a data set ( highest value and lowest value) and is easy to be computed. A large range indicates a more dispersed data set about the mean while a small range exhibits a more clustered data about its mean.
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