Question

If Professor Wilson found that the test scores of his students had a variance of 4.4, what is the standard deviation? Type a numerical answer in the space provided. Round your answer to the nearest tenth and do not type spaces in your answer.

Answer 1

it is 2.1

Explanation:

Answer 2

The standard deviation is the square root of a data set's variance.

Since our variance here is 4.4, our standard deviation is √4.4 ≈ 2.1