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Scores for the reading portion of a test were normally? distributed, with a mean of 20.3 and a standard deviation of 5.2.

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

What is the probability of a student scoring less than 18 is and round to four decimal places?

The probability that a randomly selected high school student who took the reading portion of the test has a score that is between 15.7 and 24.9

What is the probability of a student scoring between 15.7 and 24.9 is and round to four decimal places?

The probability that a randomly selected high school student who took the reading portion of the test has a score that is more than 30.8.

What is the probability of a student scoring more than 30.8 is and round to four decimal places?

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