Show that the exponential distribution $f_X(x) = y_0\cdot\exp\left(\frac{-x}{\sigma}\right)$, mean and variance are equal.
My attempt:
The value of the mean that I got is y0.σ² which is not equal to the variance. Can you please help me? Thanks.
2026-04-01 11:02:54.1775041374
Mean and Variance of Exponential Distribution
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