A given data set has a variance of 81. What is the standard deviation?Question 19Answera.7.5b.6.5c.9.0d.3.0
Question
A given data set has a variance of 81. What is the standard deviation?Question 19Answera.7.5b.6.5c.9.0d.3.0
Solution
The standard deviation is the square root of the variance. So, in this case, you would take the square root of 81. The square root of 81 is 9. Therefore, the standard deviation of this data set is 9. So, the answer is c. 9.0.
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