(Solution Library) At a computer store, the annual demand for a particular software package is a discrete random variable X. The store owner orders four

Question:

At a computer store, the annual demand for a particular software package is a discrete random variable X. The store owner orders four copies of the package at $10 per copy and charges customers $35 per copy. At the end of the year, the package is obsolete and the owner loses the investment on unsold copies. The pmf of

X is given by the following table:

X	0	1	2	3	4
P( X = x )	0.1	0.3	0.3	0.2	0.1

Find E( X ).

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(Solution Library) At a computer store, the annual demand for a particular software package is a discrete random variable X. The store owner orders four

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