Standard Error Formula
Standard error is an important statistical measure and it is concerned with standard deviation. The accuracy of a sample that represents a population is knows through this formula. The sample mean deviates from the population and that deviation is called standard error formula.
s is the standard deviation
n is the number of observation
Question: Calculate the standard error of the given data:
x: 10, 12, 16, 21, 25
Standard Deviation can be calculated as