Multiple choice

If mean= $25$ and standard deviation is $5$, then coeficient of variation is-

  1. $100%$
  2. $20%$
  3. $40%$

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Coefficient of variation is (standard deviation / mean) * 100%. Here, (5 / 25) * 100% = 0.2 * 100% = 20%.

AI explanation

Use the coefficient of variation formula, which is calculated as standard deviation divided by mean multiplied by 100. Substitute the given values into the formula to get 5 divided by 25, which is 0.2. Multiplying this result by 100 gives a coefficient of variation of 20%.

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