Types of errors in statistics

Errors in statistics or any statistical investigation can be broadly classified in two types:

a)      Sampling errors and b) non sampling errors

a)      Sampling errors: Even after taking care in selecting sample, there may be chances that true value is not equal to the observed value because estimation is based upon a part of the population not on the whole. Hence sampling give rise to certain errors known as sampling errors. Continue reading “Types of errors in statistics”