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AP EAMCET201921 Apr 2019Morning ShiftMathematicsStatisticsActual

The mean deviation about the mean for the following data is

Options

  1. A35
  2. B10
  3. C15
  4. D12

Correct answer

B. 10

Step-by-step solution

aligned X & = f_i x_i f_i = 2800 80 =35 M.D. & = 1 N _ i=1 ^n f_i |x_i- x | & .= 1 80 _ i=1 ^n f_i |x_i-35 | [Here, N=80 ] & = 1 80 800=10 aligned

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