Aboveis the equation for calculating standard deviationof a population.

Which part of the equation shows us the deviations from our mean?

Which part of the equation gives us the sum of squares?

Which part of the equation do we use to find the variance? (the average of our sum of squares)

What is the last step we take when using this equation to figure out our standard deviation from the variance?

What would I change about the equation if I wanted to calculate the standard deviation of a sample?