Multiple choice

If standard deviation of a distribution is 8.5, then what will be the value of the variance?

  1. $72.25$
  2. $7.25$
  3. $7.225$
  4. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Variance is the square of the standard deviation. Given SD = 8.5, the variance is 8.5² = 8.5 × 8.5 = 72.25. Option B incorrectly uses 8.5÷8.5, while option C has the decimal misplaced.