Chapter 14: Statistics

Q1. Find the mean of: 4, 7, 9, 11, 14.

Solution

Mean = (4+7+9+11+14)/5 = 45/5 = 9

Q2. Find the median of: 3, 5, 7, 9, 11.

Solution

n = 5 (odd)
Median = (n+1)/2 th term = 3rd term = 7