This yeаr, ACT scоres аre nоrmаlly distributed with a mean оf 18 points and a standard deviation of 4.3 points. Find the probability that the ACT score of a randomly selected student is less than 20 points. Answer as a number between 0 and 1, rounded to 4 decimal places. _______ Find the probability that the ACT score of a randomly selected student is between 8 and 15 points. Answer as a number between 0 and 1, rounded to 4 decimal places. _______ Find the probability that the ACT score of a randomly selected student is more than 23 points. Answer as a number between 0 and 1, rounded to 4 decimal places. _______ Find the ACT score at the 85th percentile. Round the answer to 1 decimal place. _______ Find the percentile rank for an ACT score of 15 points. Round to the nearest whole number. _______