You need a sample of NFL players to survey about their opinions on Chronic Traumatic Encephalopathy (CTE). You divide the league by the players' primary position (Quarterback, Wide receiver, Defensive back, Safety, Kicker, etc). You then take a random sample of 20 players from each of the positions.
What type of sampling is this?
1.Cluster sampling |
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2.Convenience sampling |
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3.Random sampling |
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4.Systematic sampling |
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5.Stratified sampling |
This is an example of -
ans-> Stratified sampling.
Since,
Stratified random sampling is a method of sampling that involves the division of a population into smaller sub-groups known as strata.
In stratified random sampling or stratification, the strata are formed based on members' shared attributes or characteristics
You need a sample of NFL players to survey about their opinions on Chronic Traumatic Encephalopathy...
Imagine that you are asked to determine students’ opinions at your school about different types of contraception or birth control methods. Describe how you could go about getting a sample of each of the following types: simple random sample, sample of convenience, voluntary response sample, stratified sample, cluster sample, systematic sample.
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