Retums on a certain business venture, to the nearest ($1000), are known to follow the probability distribution below: 1-202 X P(X-x)=f(x) -3 0.1 -2 0.1 -1 0.2 a. What is the expected return b. What is the variance of the return on venture? 0 ?? a 1 0.3 2 0.1

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