Question

What are the characteristic of a good measure of dispersion?

Answer 1

Answer:

There are various tools to measure dispersion, namely Range, Average Deviation, Standard Deviation, Variance and Coefficient of Variation. Range: This is the simplest possible measure of dispersion and is defined as the difference between the largest and smallest values of the variable. In symbols, Range = L – S.

Answer 2

Answer:

Explanation:m1 = 2kg

m2= 3kg

Now,

T= (2m1 × m2 / m1 × m2 )g

= (2 ×2 ×3/ 2+3 )g

= 12/5 g

a = (m2 - m1 / m1+ m2) g

= (3-2/3+2)g

= g/5