Question

distinguish between sampling and non sampling errors..??

Answer 1

Sampling error is one which occurs due to unrepresentativeness of the sample selected for observation. Conversely, non-sampling error is an error arise from human error, such as error in problem identification, method or procedure used, etc.

Answer 2

$66541558 \sqrt[22]{11?} 2552655423304788996 \times 55452665455$