Question:
The random variable Y has the probability distribution given in the following table.
Given that $\displaystyle E(Y) = 4.9$, show that $\displaystyle a = b$, and find the standard deviation of Y.
Attempt:
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Question:
The random variable Y has the probability distribution given in the following table.
Given that $\displaystyle E(Y) = 4.9$, show that $\displaystyle a = b$, and find the standard deviation of Y.
Attempt:
Need help continuing...