In a recent year, the scores for the reading portion of a test were normally distributed, with a mean of 20.5 and a stan

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In A Recent Year The Scores For The Reading Portion Of A Test Were Normally Distributed With A Mean Of 20 5 And A Stan 1 (124.43 KiB) Viewed 36 times

In a recent year, the scores for the reading portion of a test were normally distributed, with a mean of 20.5 and a standard deviation of 5.4. Complete parts (a) through (d) below. (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 16. The probability of a student scoring less than 16 is 0.2033. (Round to four decimal places as needed.) (b) Find the probability that a randomly selected high school student who took the reading portion of the test has a score that is between 17.8 and 23.2. The probability of a student scoring between 17.8 and 23.2 is 0.3830. (Round to four decimal places as needed.) (c) Find the probability that a randomly selected high school student who took the reading portion of the test has a score that is more than 31.7. The probability of a student scoring more than 31.7 is. (Round to four decimal places as needed.) Check answer