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NDA 2012
Exam
NDA
Year
2012
Subject
Mathematics
Chapter
Statistics

NDA 2012 · Mathematics · Statistics

The mean of 10 observations is 5. If 2 is added to each observation...

The mean of 10 observations is 5. If 2 is added to each observation and then multiplied by 3 , then what will be the new mean?

Options

  1. A5
  2. B7
  3. C15
  4. D21

Correct answer

D. 21

Step-by-step solution

The correct answer is option D.
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