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This lesson is a part of the course Common Probability Distributions
The concept of lognormal distribution is very closely related to the concept of normal distribution.
Let’s say we have a random variable Y. This variable Y will have a lognormal distribution if the natural log of Y (ln Y) is normally distributed. So, we check if the natural logarithm of a random variable is normally distributed or not. If it is, then the random variable itself will have a lognormal distribution.
