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AP EAMCET201724 Apr 2017Evening ShiftMathematicsStatisticsActual

The mean deviation of the numbers a, a+d, a+2 d, , a+2 n d from their mean is equal to

Options

  1. A(n+1) d 2 n+1
  2. Bn(n+1) d 2 n+1
  3. C(n+1)|d| 2 n
  4. Dn(n+1)|d| 2 n+1

Correct answer

D. n(n+1)|d| 2 n+1

Step-by-step solution

No solution. Refer to answer key.

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