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Basic Question 19 of 30
Sampling that subdivides the population into subgroups with like characteristics and then samples a proportionate amount from each subgroup is called ______.
B. stratified
C. systematic
A. random
B. stratified
C. systematic
User Contributed Comments 2
| User | Comment |
|---|---|
| CFAonTheBrain | can someone please explain why? |
| UFCRP | The example in the notes here is a good one. A Bond Index will contain an overtly large number of different types of bonds ranging in difference in maturity, duration, quality, and callability, etc. Using each of these differences, you can box in bonds with similar criterea and then base your sample from the population of each box. Therefore, stratifying (a.k.a. arranging) the bonds allows you to take a sample from each to represent the majority of what is held in the index. You're basically picking from the mean of each bond category. |
I am happy to say that I passed! Your study notes certainly helped prepare me for what was the most difficult exam I had ever taken.
Andrea Schildbach
Learning Outcome Statements
compare and contrast simple random, stratified random, cluster, convenience, and judgmental sampling and their implications for sampling error in an investment problem
CFA® 2025 Level I Curriculum, Volume 1, Module 7.