Question

alculate the mean and standard deviation from the following data:
Wages upto (in Rs.) : 10
20 30 40 50 60 70
No. of persons :
12 30 65 107 157 202 220
80
230​

Answer 1

Answer:

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Step-by-step explanation:

[5/(x-2)]-[4/x]={

{3x/(x+6)}[5/(x-2)]-[4/x]={

{3x/(x+6)}