Question

Find out the quartile deviation and coefficient of quartile deviation of the following series. Wages 10 20 30 40 50 60 70 80 90 100 N. of worker 2 8 20 35 42 20 28 26 16 2​

Answer 1

Answer:

Highest value (H)= 35

Lowest value (L) = 15

Range= Highest value − Lowest value

i.e. R= H− L

Substituting the given values in the formula

R= 35 − 15= 20

Coefficient of Range is as follows:

CR =

H-L

H+L

or, CR =

35-15

35+15

=

20

50

⇒ CR =0.4

Hence, the range (R) of the above data is 20 and coefficient of Range (CR) is 0.4