Question

What is the definition of Standard Deviation?

Answer 1

Answer:

b.  Square root of the variance

Step-by-step explanation:

The standard deviation measure how scattered the data of the set is, in other words, measure the dispersion. A low value is found when the points are close to the mean, and when the value is high the data uses a wider range of values. To calculate its value, the simple way, you need the variance because the standard deviation is the square root of the variance.