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NDA 2018
Exam
NDA
Year
2018
Subject
Mathematics
Chapter
Statistics

NDA 2018 · Mathematics · Statistics

Consider the following statements: 1. If 10 is added to each entry...

Consider the following statements: 1. If 10 is added to each entry on a list then the average increase by 10. 2. If 10 is added to each entry on a list, then the standard deviation increase by 10. 3. If each entry on a list is doubled, then the average doubles. Which of the above statement are correct?

Options

  1. A1,2 and 3
  2. B1 and 2 only
  3. C1 and 3 only
  4. D2 and 3 only

Correct answer

C. 1 and 3 only

Step-by-step solution

The correct answer is option (C)
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