Question

by mix sampling we mean ______​

Answer 1

Answer:

a multistage sample, if the sampling units at one stage are drawn at random and those at another by a systematic method, the whole process is “mixed”.

Answer 2

there are 2 pics 1 in right another in left

EXPLANATION:

When each entity of the population has a definite, non-zero probability of being incorporated into the sample, the sample is known as a probability sample.

Probability samples are selected in such a way as to be representative of the population. They provide the most valid or credible results because they reflect the characteristics of the population from which they are selected.