What is sampling error?

Sampling error is the difference between the results obtained from a sample and the results that would have been obtained if the entire population had been included in the study. It is a measure of the amount of variation or error that is likely to occur by chance in the selection of a sample from a larger population. Sampling error can occur due to various factors such as the size of the sample, the method of sampling, and the variability of the population being studied. It is important to consider and minimize sampling error in order to ensure the accuracy and reliability of research findings.