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(Solved): Suppose that x is a random variable with the following probability mass function (pmf): p(x)=P(x=x)= ...



Suppose that x is a random variable with the following probability mass function (pmf): p(x)=P(x=x)={(0.4 if x=1),(0.3 if x=2),(0.2 if x=3),(0.1 if x=4),(0 otherwise ):} Furthermore, suppose additionally that the random variables Y and Z are defined as follows: Y=2x-3 Z=45.6-x^(3) Find the expected values of each of these three random variables. Give your answer as a whole number wherever possible.


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