- CFA Exams
- CFA Level I Exam
- Topic 1. Quantitative Methods
- Learning Module 4. Common Probability Distributions
- Subject 7. The Standard Normal Distribution
CFA Practice Question
For a set of data with mean 70 and standard deviation 10, the z-score for 62 is ______.
B. -0.8
C. -8
A. 0.8
B. -0.8
C. -8
Correct Answer: B
The z-score for a piece of data is z = (score - mean)/std dev. For an x-score of 62, we have z = (62 - 70)/10 = -0.8. So, 62 has a z-score of -0.8.
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