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4. Given x: -3 / 0 / 3 P(X =x): .5 / .2 / .3 Find...

4. Given x: -3 / 0 / 3 P(X =x): .5 / .2 / .3 Find the variance given that the expected value is - .6

A. 4.1 B. 2.85 C. 8.142 D. 2.02 E. 6.84

5. A probability distribution has a mean of 10 and standard deviation of 1.5. Use Chevbychev’s Inequality to estimate the probability that an outcome will be between 7 and 13.

A. 4 B. 2 C. 5 D. 4

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