Hello,

How much data should lie outside +/- 1 standard deviation from the mean in the following example?

If assessing the number of calories consumed by women in a day and the mean was 1800 and the standard deviation was 200, how many women consumed more than 1600 calories (population size 1000)?

What is the cutoff for the 99% points?

If I can get a detailed answer of how this is done, it would be greatly appreciated.

Thank you very much!