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Statistics · 2021 · 25 Jul · Shift 2

1 Mathematics questions from this JEE Main paper
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Statistics · 2021 · 25 Jul · Shift 2

1 Mathematics questions from this JEE Main paper

  1. Q25.The first of the two samples in a group has 100 items with mean 15 and standard deviation 3. If the whole group has 250 items with mean 15.6 and standard deviation 13.44​, then the standard deviation of the second sample is :
    Mathematics · Statistics · MCQ