The distribution of a random variable X is shown in the table below and the expectation...

Question

Question

The distribution of a random variable X is shown in the table below and the expectation E[X] = 2. Then, what is the maximum value of ab?

x	a	2	b
P(X=x)	0.2	0.3	0.5

Answer 1

Answer #1

Answer 2

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