Question

Calculate the range of the following frequency distribution

Class interval	1 - 10	10 - 20	20 - 30	30 - 40	40 - 50
Frequency	34	35	54	28	40

1. 35
2. 20
3. 28
4. 25
5.

Answer 1

Correct Answer - Option 2 : 20

Formula

Range = L - S

L = Largest frequency

S = Smallest frequency

Calculation

The highest frequency = 54

The lowest frequency = 34

⇒ The range = 54 - 34

∴ The value of range is 20

Coefficient of range = (L - S)/(L + S)