National Chengchi University

C 36. If X is a normal random variable with mean 60 and standard deviation 2, calculate the Z score if X=57. E A. 1.5. Calc B. 2.5. C. -1.5. D. -2.5. C 37. Suppose X is a normal random variable with mean 60 and standard deviation 2. A Z score was calculated for a number, and the Z score is 3.4. What is X? M A. 63.4. Calc B. 56.6. C. 66.8. D. 53 ... ................
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