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KCET2015MathematicsApplication of Derivatives

The mean deviation from the data ( 3,10,10,4,7,10,5 ) :

Options

  1. A( 03 )
  2. B( 12 )
  3. C( 3.75 )
  4. D( 2.57 )

Correct answer

D. ( 2.57 )

Step-by-step solution

Given that, x = 3+10+10+4+7+10+5 7 - 49 7 =7 Deviations is given by, |3-7|=4,|10-7|=3,|10-7|=3|4-7|=3,|7-7|=0,|10-7|=3,|5-7|=2 So, mean deviation is given by, 4+3+3+3+0+3+2 7 = 18 7 =2.57

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