Calculating Variance- Statistics

Statistics
Tutor: None Selected Time limit: 1 Day

The mean of a test is 80 and the standard deviation is 5. How do you calculate the variance? I just don't understand where to even start the problem.  

Sep 27th, 2015

Thank you for the opportunity to help you with your question!

Variance is just the square of the standard deviation. So, in this case, if the stand deviation is 5 then the variance is 5^2 = 25.

Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 27th, 2015

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Sep 27th, 2015
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Sep 27th, 2015
Dec 3rd, 2016
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