I want the solution with assumed mean method

Dear student
I am aasuming that you want to know the mean of the given data by assumed mean method.and providing the answer on the basis of my aaumption.
 serial number  X  X- A (A = 44)
       (d)
  1 40  (40- 44) = - 4
  2 51  (51 - 44) = 7
  3  57 (57 - 44) = 13
 4 64 (64 - 44 ) = 20
5 33 (33 - 44 ) = -11
6 44 (44 - 44) = 0
7 47 (47 - 44) = 3
8 61 ( 61 - 44) = 17
9 63 (63 - 44) = 19
10 57 (57 - 44) = 13
  N = 10
Arithmetic mean = A + sum of dN
                            = 44 + 7710
                             = 44 + 7.7
                            = 51.7
Regards

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