- CFA Exams
- CFA Level I Exam
- Topic 1. Quantitative Methods
- Learning Module 5. Sampling and Estimation
- Subject 4. Point Estimates of the Population Mean

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**CFA Practice Question**

An estimator whose limit (as the sample size approaches infinity) is the parameter it is intended to estimate is called ______.

A. reliable

B. unbiased

C. consistent

**Explanation:**An estimator is called consistent if the accuracy (of measuring the parameter) increases as the sample size increases. As the sample size goes toward infinity, the resulting estimate is the population parameter.

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**User Contributed Comments**
1

User |
Comment |
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Lambo83 |
I thought this definition was an unbiased estimator. Can anyone explain what an unbiased estimator is please. Thanks |