Cheat Sheet Basic Statistics Formulas. Population mean µ use the following formula. If σ is unknown you can estimate it with the sample standard deviation s from a pilot study.
Range highest value lowest value sample standard deviation. If σ is unknown you can estimate it with the sample standard deviation s from a pilot study. Represents the population standard deviation.
In this formula moe represents the desired margin of error which you set ahead of time and σ represents the population standard deviation.
Moe represents the desired margin of error. µ σ σ. Limits for unusual data below. If σ is unknown you can estimate it with the sample standard deviation s from a pilot study.
