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The number of units, x, needed of an item is discrete from 1 to 5. The...

The number of units, x, needed of an item is discrete from 1 to 5. The probability, p(x), is directly proportional to the number of units needed. The constant of proportionality is K.

a. Determine the pmf of x

b. Find the probability that x is an even value

Math   Statistics-And-Probability   
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