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The mean and standard deviation of a set of values are 5 and 2 respectively. If 5 is added to each value, then what is the coefficient of variation for the new set of values?

Options

  1. A10
  2. B20
  3. C40
  4. D70

Correct answer

B. 20

Step-by-step solution

Given, Mean =5 Standard deviation =2 If 5 is added to each value, mean =5+5=10 . Standard deviation will not change. aligned & Coefficient of variation = Standard deviation Mean 100 & = 2 10 100=2 10=20 aligned

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