mpanying data represent the homework scores for material on Polynomial and Rational Functions for a random sample of students in a college algebra course. Complete parts (a) through (h). Click the icon to view the data. Skewed right Skewed left Uniform Bell-shaped Sa X (e) Determine the sample standard deviation and interquartile range. College Algebra Homework Scores 36 66 78 84 91 47 69 79 85 91 54 73 79 85 91 60 75 79 86 93 62 77 79 86 94 63 77 79 87 97 65 78 82 89 97 66 78 32 82 89 99 The standard deviation is 13.82 and the interquartile range is 15.5 (Round to two decimal places as needed.) (f) What is the probability a randomly selected student fails the homework (scores less than 70)? The probability is 0.25 (Type an integer or a decimal. Do not round.) (g) What is the probability a randomly selected student earns an A or B on the homework (scores 80 or higher)? The probability is (Type an integer or a decimal. Do not round.)