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Statistics · 2018 · 15 Apr · Shift 1

1 Mathematics questions from this JEE Main paper
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Statistics · 2018 · 15 Apr · Shift 1

1 Mathematics questions from this JEE Main paper

  1. Q37.The mean of set of 30 observations is 75. If each observation is multiplied by a non-zero number λ and then each of them is decreased by 25, their mean remains the same. Then λ is equal to :
    Mathematics · Statistics · MCQ