Question

2. Consider the following distribution of daily wages of 50 workers of a factory.
Daily wages (in 3)
500-520
520-540
540 - 560
560-580
580-600
Number of workers
12
14
8
6
10​

Answer 1

Answer:

Daily wages (fi) (xi) (fixi)

600−20 12 510 6120

520−540 14 630 7420

540−560 8 550 4400

560−580 6 570 3420

580−600 10 590 $$5900

∑fi=50 ∑fi xi⇒27260

mean ∑fi xi/∑fi = 27260/50=2726/5=545.2

∴ mean wage of 50 employees is 545.2rs