Question

what is stratified or mixed sampling what are its advantage ​

Answer 1

Answer:

Stratified sampling offers several advantages over simple random sampling. A stratified sample can provide greater precision than a simple random sample of the same size. ... A stratified sample can guard against an "unrepresentative" sample (e.g., an all-male sample from a mixed-gender population).

Answer 2

Answer:

Stratified sampling offers several advantages over simple random sampling. A stratified sample can provide greater precision than a simple random sample of the same size. ... A stratified sample can guard against an "unrepresentative" sample (e.g., an all-male sample from a mixed-gender population).

Explanation:

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