Question

2. Consider the following distribution of daily wages of 50 workers of a factory.
Daily wages (in)
500-520
520-540
540 - 560
560-580
580-600
Number of workers
12
14
8
6
10
Find the mean daily wages of the workers of the factory by using an appropriate method.​

Answer 1

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

∑fi xi

​  

=  

50

27260

​  

=  

5

2726

​  

=545.2

∴  meam\n wage of 50 employees is 545.2rs