Suppose that Math SAT scores are normally distributed with mean 514 points and s.d. 98 points. Let X be the Math SAT score of a r/s student, and X be the average Math SAT score of 16 r/s students. (a) 6. Find P(450< X <550) and interpret the answers in plain language. (b) Find P(450 <{< 550) and interpret the answers in plain language,

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