FAQ: Variance in R - Variance in R

This community-built FAQ covers the “Variance in R” exercise from the lesson “Variance in R”.

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This exercise can be found in the following Codecademy content:

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FAQs on the exercise Variance in R

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Is there any difference between the variance() function we learned here and the var() summary function we learned during Aggregates in R?

Yes. The var() function calculates a sample variance, while the variation() function calculates a population variance. The difference is better explained in a separate course of statistics, but basically var() makes an estimation for the whole population based on a sample of data (quicker and precise enough for many purposes).

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