Suppose x has a distribution with ? = 10 and ? = 3. If a random sample of size n = 71 is drawn, find ?x, ? x and P(10 ≤ x ≤ 12). (Round ? x to two decimal places and the probability to four decimal places.) ? x =  P(10 ≤ x ≤ 12) =

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Suppose x has a distribution with ? = 10 and ? = 3.

If a random sample of size n = 71 is drawn, find ?x, ? x and P(10 ≤ x ≤ 12). (Round ? x to two decimal places and the probability to four decimal places.)

? x = 

P(10 ≤ x ≤ 12) =

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