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AP EAMCET20225 Jul 2022Evening ShiftMathematicsStatisticsActual

The mean deviation about the mean for the following data:

Options

  1. A14.33
  2. B15.66
  3. C18
  4. D23.84

Correct answer

D. 23.84

Step-by-step solution

Mean ( x )= f_i x_i f_i = 2560 50 =51.2 Mean deviation about mean = f_i |x_i- x | f_i aligned & 1 50 array l 10 (10-51.2|+8| 30-51.2|+12| 50-51.2 +9|70-51.2|+11|90-51.2| array & 1 50 [412+169.6+14.4+169.2+426.8] & =23.84 aligned

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