Elementary Statistics and Computer Application

Median

• The median is the middle most item that divides the group into two equal parts, one part comprising all values greater, and the other, all values less than that item.

Ungrouped or Raw data

• Arrange the given values in the ascending order. If the number of values are odd, median is the middle value
• If the number of values are even, median is the mean of middle two values.
By formula
When n is odd , Median =

Example 4

• If the weights of sorghum ear heads are 45, 60,48,100,65 gms, calculate the median

Solution
Here n = 5
First arrange it in ascending order
45, 48, 60, 65, 100


Example 5
If the sorghum ear- heads are 45,48, 60, 65, 65, 100 gms, calculate the median.
Solution
Here n = 6