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 most commonly used measure of dispersion is
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Range
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Quartile deviation
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Standard deviation
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Coefficient of variation
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Explanation:
Detailed explanation-1: -Standard deviation (SD) is the most commonly used measure of dispersion. It is a measure of spread of data about the mean. SD is the square root of sum of squared deviation from the mean divided by the number of observations.
Detailed explanation-2: -Mean, Standard Deviation; Variance is the measure used to calculate dispersion.
Detailed explanation-3: -Standard Deviation is considered as the best measure of dispersion as, Help to make comparison between the distribution of two or more different datasets. Based on all values. Capable of further algebraic treatment.
Detailed explanation-4: -Measures of Dispersion or Variability They include the range, interquartile range, standard deviation and variance.
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