Write the observations in ascending order.
1, 2, 2, 2, 2, 4, 4, 5, 6, 7, 8
Total number of observations = 11
Mean = Sum of observations ÷ Total number of observations
Mean = (1 + 2 + 2 + 2 + 2 + 4 + 4 + 5 + 6 + 7 + 8) ÷ 11
Mean = 43 ÷ 11 = 3.90
Median = ((n + 1) ÷ 2)th term [Here n is the number of observations]
Median = ((11 + 1) ÷ 2)th term
Median = (12 ÷ 2)th term
Median = 6th term
The sixth observation is 4.
Median = 4
