- CFA Exams
- CFA Level I Exam
- Study Session 3. Quantitative Methods (2)
- Reading 9. Common Probability Distributions
- Subject 10. The Lognormal Distribution

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**CFA Practice Question**

Consider the following statements:

II. A random variable, Y, follows a lognormal distribution if its natural logarithm is normally distributed.

III. The lognormal distribution is described by the mean and standard deviation of its associated normal distribution.

I. The lognormal distribution is widely used for modeling the probability distribution of stock and other asset prices.

II. A random variable, Y, follows a lognormal distribution if its natural logarithm is normally distributed.

III. The lognormal distribution is described by the mean and standard deviation of its associated normal distribution.

Which of the following are true?

A. II and III

B. I and III

C. I, II and III

**Explanation:**These statements are all correct.

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