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#18 In a recent year, the scores for the reading portion of a test were normally distributed, with a mean of 23.9 and a standard

#18

In a recent year, the scores for the reading portion of a test were normally distributed, with a mean of

23.9 and a standard deviation of 5.8.

(a) Find the probability that a randomly selected high school student who took the reading portion of the test has a score that is less than 18.

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