What is the formula for the standard error?

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Andrew Reyes · Accepted Answer

se=var(X)  Explanation:  Given a random variable X with a certain pdf f, the variance is  var(X)=E(X2)−E2(X), where E is the expected value. The standard error (or standard deviation) is just se=var(X). For example, if X is N(μ,σ2), the standard error is σ.

vrangett · Accepted Answer

When you are asked to find the sample error, you&#039;re probably finding the standard error. That uses the following formula: sn. You might be asked to find standard errors for other stats like the mean or proportion.

What is the formula for the standard error?

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