Question

3) Find out P50 for the following data.
Wages (in ₹) (x)
0-20, 20-40, 40-60,60-80, 80-100
Number of workers
4,6,10,25,15
​

Answer 1

Answer:

Ans is 68

Explanation:

calculate the cf

CI. F. CF.

0-20. 4. 4

20-40. 6. 10

40-60. 10. 20

60-80. 25. 45

80-100. 15. 60

TOTAL. 60

To know the P50 class use 50 * 60 /100

= 30

P50 class will be 60-80

use the formula-

L + (50N/100 - cf ) i

f

60 + (30-20) 20

25

60 + 200. = 60+8 = 68

25