In the three examples we considered — the heights, short-stories, and newspaper pages. Class 7

In the three examples we considered — the heights, short-stories, and newspaper pages. Class 7

Question 1.

In the three examples we considered — the heights, short-stories, and newspaper pages — observe the variability in data when : Class 7

(a) the mean and median are close to each other

(b) the mean and median are compara¬tively far apart, with mean < median

(c) the mean and median are compara¬tively far apart, with mean > median

Solution:

Do as directed.

Question 2.

Discuss the effect on the mean and median when outliers are present on both sides. You may take some example data to examine and explain this.

Solution:

Do as directed. For example, if outlier is on the lower side, then mean < median and if the outlier is on the higher side, mean > median. Further in a balanced case, mean and median will be nearly equal to each other as you have already seen in the above examples.