What survey methodology is this?
A: Stratified Sampling
B: Clustered Sampling
C: Simple Random Sampling
D: Systematic Sampling
Answer: A
The manager of a QFC is concerned that customers may think the store's temperature may be too warm. He knows men and women may have different views, and also knows 60% of his customers are women. He asks a random 60 women and a random 40 men whether they are comfortable.
A: Stratified Sampling
B: Clustered Sampling
C: Simple Random Sampling
D: Systematic Sampling
Answer: A
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