Question

find the mean daily wages of the workers from following distribution:
daily wages: 100-120,120-140,140--160,160-180,180-200.
number of workers:12,14,8,6,10​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Dailywages  Class−mark

x  

i

​  

  No.ofworker

f  

i

​  

  f  

i

​  

x  

i

​  

 

100−120  110  12  1320  

120−140  130  14  1820  

140−160  150  8  1200  

160−180  170  6  1020  

180−200  190  10  1900  

   ∑f  

i

​  

=50  ∑f  

i

​  

x  

i

​  

=7260  

Mean=  

∑f  

i

​  

 

∑f  

i

​  

x  

i

​  

 

​  

=  

50

7260

​  

=145.2

Step-by-step explanation: