var(X) = (xm/a - 1)2 a/a-2 .
If a < or equal to 2, the variance does not exist.
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It is a discrete distribution in which the men and variance have the same value.
The normal distribution can have any real number as mean and any positive number as variance. The mean of the standard normal distribution is 0 and its variance is 1.
yes
yes
Variance