Question

bryant collects a set of 20 values that represent the lengths of worms he found in the garden. the variance of the set of values $sigma^{2}$ is 36. what is the standard deviation from the mean? round the answer to the nearest tenth if necessary. 4.5 6 14 15.5

Explanation:

Step1: Recall the relationship

The standard - deviation $\sigma$ is the square - root of the variance $\sigma^{2}$.

Step2: Calculate the standard deviation

Given $\sigma^{2}=36$, then $\sigma=\sqrt{36}$.
Since $\sqrt{36} = 6$, the standard deviation is 6.

Answer:

B. 6