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The act test had a mean composite score of 18 and

The act test had a mean composite score of 18 and a standard deviation of 6. Assume the scores are normally distributed. Find the probability that a student had a score higher then 20

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*************************** =033So p(z>033)=06304 (based ** ******* ******

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**** ******** *** It *** step by **** well ********* ******

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