Question

Write short note on quartiles.

Answer 1

A quartile is a type of quantile. The first quartile is defined as the middle number between the smallest number and the median of the data set. The second quartile is the median of the data. The third quartile is the middle value between the median and the highest value of the data set.

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Answer 2

Explanation:

A quartile is a statistical term that describes a division of observations into four defined intervals based on data values and how they are compared with the whole set of observations. Just as the median divides the data into half so that 50 percent of the measurement is below the average and 50 percent above it, so the quartile divides the data into quarters so that 25 percent of the measurement is below the lower quartile, 50 percent below the mean and 75 percent below the upper quartile.

- Through splitting the distribution into four classes, the quartile calculates the range of values above and below the mean.

- A quartile divides data into three points— a lower quartile, median, and upper quartile— to form four data set groups.

- The interquartile range, which is a measure of variability around the median, is calculated using quartiles.