Which of the following is not a measure of dispersion?

Which of the following is not a measure of dispersion?

Which of the following is not a measure of dispersion?

1. Range 2. Variance 3. Median 4. Quartile

The correct answer is 3. Median.

Range, variance, and quartile are all measures of dispersion, which is the spread of data points around the central tendency. The median is the middle value in a sorted data set, and it is not a measure of dispersion.

Here is a brief explanation of each measure of dispersion:

  • Range: The range is the difference between the largest and smallest values in a data set.
  • Variance: The variance is the average of the squared deviations from the mean.
  • Quartile: The quartiles divide a data set into four equal parts. The first quartile is the middle value of the lower half of the data set, the second quartile is the median, the third quartile is the middle value of the upper half of the data set, and the fourth quartile is the largest value in the data set.

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