A measure of how much an estimated coefficient would vary in regressions based on the same underlying true demand relation, but with different observations is called the standard error.
The standard error of the mean is known to be the standard error for short and it is said to be one that shows how a lot of the population mean is said to be likely to be from the same sample mean.
Hence, A measure of how much an estimated coefficient would vary in regressions based on the same underlying true demand relation, but with different observations is called the standard error.
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