This video covers how to find the standard deviation by hand using the formula. Remember there are actually two formulas depending if your data comes from a sample or a population. Even though all of these calculations can be done by hand, a calculator is recommended so that you don't make mistakes. Did you find this video helpful and want to find even more? See all of the subjects available and stay up to date with the newest videos at:
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Find the variance:
Using the Ti83 or Ti84:
Using the Casio fx-9750Gii:
Using the Casio fx-115ES Plus:
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