Numerical example shows that the optimal order quantity increases and maximization profit decreases as the expected value of fuzzy random defective rate increase.
Although unwieldy, this does correctly match the predicate on the server and return the expected value.
The variance of a random variable measures how far from the expected value its values typically are.
the second moment around the mean; the expected value of the square of the deviations of a random variable from its mean value.
