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BITSAT2023MathematicsStatisticsActual

The standard deviation of 5 scores 1,2,3,4,5 is a . The value of ' a ' is

Options

  1. A2
  2. B3
  3. C5
  4. D1

Correct answer

A. 2

Step-by-step solution

aligned & Mean ( x )= 1+2+3+4+5 5 =3 & S.D = = 1 5 (1+4+9+16+25)-9 = 11-9 & = 2 aligned

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