For a given frequency distribution, ∑fidi = -50, ∑fi = 200 and A = 62.5. Then find mean​

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1. Answer:

   the mean = 62.75

   Step-by-step explanation:

   ∑fidi = -50,

   ∑fi = 200 and

   A = 62.5.

   Then mean= A + ∑fi /∑fidi

   = 62.5 + 50/200

   = 62.5 + 1/4

   = 62.5+ 0.25

   = 62.75

   the mean = 62.75

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