Standard Error

Definition

The standard error is a measure of the variability or spread of sample means around the population mean. It tells us how much we can expect sample means to differ from the true population mean.

Related terms

Confidence Interval: A confidence interval is a range of values that likely contains the true population parameter with a certain level of confidence.

Sampling Distribution: A sampling distribution is a theoretical distribution that shows all possible sample statistics for a given sample size taken from a population.

Margin of Error: The margin of error is an interval around an estimated value that accounts for uncertainty due to sampling variability. It indicates how close our estimate might be to the true population parameter.