Suppose the first test in this class has a normal, or bell-shaped, grade distribution of test scores,
Fantastic news! We've Found the answer you've been seeking!
Question:
Suppose the first test in this class has a normal, or bell-shaped, grade distribution of test scores, with an average score of 75. An approximate function that models your class’s grades on test 1 is ,
where N represents the number of students who received the score x.
a. Graph this function.
b. What is the average grade?
c. Approximately how many students scored a 50?
d. Approximately how many students scored 100?
Related Book For
Introductory Statistics For The Behavioral Sciences
ISBN: 9780470907764
7th Edition
Authors: Joan Welkowitz, Barry H. Cohen, R. Brooke Lea
Posted Date: