isabelbrandt3
Answered

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The marketing manager of a cell-phone company wants to determine which cell phone model most of her customers prefer. She separates a list of her customers into three age groups and then randomly selects a sample from each group proportional to the number of customers in each group.
What sampling method did she use?

A. Simple random sampling
B. Stratified random sampling
C. Systematic random sampling
D. Non-random sampling

Sagot :

emmawande308

Answer:

C

Step-by-step explanation:

I guess it is the answer because the manager separates the customers into 3 ange groups and randomly selects a sample from each group

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