Compute the mean and the variance of a lognormal variable Y = eX where X is normally

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Compute the mean and the variance of a lognormal variable Y = eX where X is normally distributed with the following mean and variance:
a. μ = 3, σ2 = 2
b. μ = 5, σ2 = 2
c. μ = 5, σ2 = 3
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