Final answer:
The spread of the average around the average of averages in a sampling distribution is called the standard error.
Step-by-step explanation:
The spread of the average around the average of averages in a sampling distribution is called the standard error. The standard error measures how much the statistic varies from one sample to another and is the standard deviation of the sampling distribution. It is calculated by dividing the standard deviation of the population by the square root of the sample size.