Interpreting the Sample Mean, Variance and Standard Deviation and their units

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Interpreting the Sample Mean, Variance and Standard Deviation and their units
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Professor, Greetings from Lima-Peru. Sorry i have a question, in the case for example my xbar its 100 and my standar desviation its 120, thats mean my standar desviation its good or bad? How far must the standard deviation be from the xbar to be considered good or bad?

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Like 20 seconds of country music, it actually got me going for a dance. lol
Thank you for the video!

wrjazziel