Assume that you earned an 87 on Exam 1 in this course. The class had an average of 78 (s=8.69). How many people earned a score below your score? (in percentage)

85%

Step-by-step explanation:

Given data

Exam score earned by student = 87

class average = 78

s = 8.69

Calculate the percentage of people that earned a score below your score

P ( z < 1.04 ) = 0.8508 = 85%

Note : Z ( z score ) = (exam score - class average) / s

                   = (87 - 78) / 8.69 = 1.04