MANAGEMENT

Detailed explanation-1: -Probability sampling means that every member of the population has a chance of being selected. It is mainly used in quantitative research. If you want to produce results that are representative of the whole population, probability sampling techniques are the most valid choice.

Detailed explanation-2: -The best way to avoid sampling bias is to conduct simple random sampling, in which samples are chosen strictly by chance. This provides equal odds for every member of the population to be chosen as a participant in your study.

Detailed explanation-3: -Using stratified random sampling, researchers must identify characteristics, divide the population into strata, and proportionally choose individuals for the representative sample. In general, the larger the population target to be studied the more difficult representative sampling can be.

Detailed explanation-4: -The common (and simplest) method for selecting participants for focus groups is called “purposive” or “convenience” sampling. This means that you select those members of the community who you think will provide you with the best information. It need not be a random selection; indeed, a random sample may be foolish.