CFA Practice Question

There are 434 practice questions for this study session.

CFA Practice Question

Manufacturers were subdivided into groups by volume of sales. Those with more than $100 million in sales were classified as Class A large; those from $50 to $100 million as Class A medium size; those between $25 and $50 million small, and so on. Samples were then selected from each of these groups. What is this type of sampling called?
A. stratified random
B. simple random
C. convenience
Explanation: This is stratified random sampling. It is a method of selecting a random item from each section of the population. The randomness comes from the random selection from a particular section. Stratified refers to the division of the sections.

User Contributed Comments 1

User Comment
Alexalee isnt stratified method supposed to use the same proportion for the sample, and it is not mentioned.
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