Some measures of central tendency for n discrete observations are given below:
1. Arithmetic mean
2. Geometric mean
3. Harmonic mean
4. Median
A desirable property of a measure of central tendency is if every observation is multiplied by c, then the measure of central tendency is also multiplied by c, where `cgt0`. Which of the abvoe measures satisfy the property?

Options

A. 1, 2 and 3 only
B. 1, 2 and 4 only
C. 3 and 4 only
D. 1, 2, 3 and 4

Answer

B

Explanation

''If every observation is multiplied by c, then the measure of central tendency is also multiplied by c, where c gt 0. Arithmetic mean, Geometric mean and median satisfies above property.