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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Mathematics
Chapter
Statistics

NTA Abhyas 2020 · Mathematics · Statistics

If the standard deviation of 0, 1, 2,... , 9 is k , then the...

If the standard deviation of 0,1,2,...,90, 1, 2,... , 9 is kk, then the standard deviation of 10,11,12,...,1910, 11, 12,... , 19 is

Options

  1. Akk
  2. Bk+10k + 10
  3. Ck+10\text{k} + \sqrt{1 0}
  4. D10k10k

Correct answer

A. kk

Step-by-step solution

Here, we see that 1010 is added in each observation of the first data.

Since we know that SD does not depend on change of origin.

Hence, SD of second data is kk.
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