Math, asked by sangu0013, 7 months ago

If m a n ,when m= 160,n=20,find the value of m,when n=12

Answers

Answered by fflover84
1

Answer:

σ=n∑x2−(n∑x)2

   

   =101530−(12)2

   =153−144

   =9

   =3

Coefficient of variation =xσ×100

                                       =123×100

                                       =41×100

                                       =25

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