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Statistics · 2009 · Shift 0

2 Mathematics questions from this JEE Main paper
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Statistics · 2009 · Shift 0

2 Mathematics questions from this JEE Main paper

  1. Q26.Statement - 1 : The variance of first n even natural numbers is 4n2−1​ Statement - 2 : The sum of first n natural numbers is 2n(n+1)​ and the sum of squares of first n natural numbers is 6n(n+1)(2n+1)​…
    Mathematics · Statistics · MCQ
  2. Q27.If the mean deviation of number 1, 1 + d, 1 + 2d,........, 1 + 100d from their mean is 255, then the d is equal to
    Mathematics · Statistics · MCQ