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?