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maria_01
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Homework Statement
The random variable x takes on the values 1, 2, or 3 with probabilities (1 + 3k)/3, (1 + 2k)/3, and (0.5 + 5k)/3, respectively.
Homework Equations
i. Find the appropriate value of k.
ii. Find the mean.
iii. Find the cumulative distribution function.