SOLUTION: An instructor has graded 23 exam papers submitted by students in a class of 24 students, and the average so far is 72. (The maximum possible score is 100.) How high would the score

Algebra ->  Probability-and-statistics -> SOLUTION: An instructor has graded 23 exam papers submitted by students in a class of 24 students, and the average so far is 72. (The maximum possible score is 100.) How high would the score      Log On


   

Question 404147: An instructor has graded 23 exam papers submitted by students in a class of 24 students, and the average so far is 72. (The maximum possible score is 100.) How high would the score on the last paper have to be to raise the class average by 1 point?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
An instructor has graded 23 exam papers submitted by students in a class of 24 students, and the average so far is 72. (The maximum possible score is 100.) How high would the score on the last paper have to be to raise the class average by 1 point?
-------------------------------
total points on the 23 exams: 23*72 = 1656
-----
For 24 papers to average 73 points you need 24*73 = 1752
---
Score on the final paper would have to be (1752-1656) = 96
===============
Cheers,
Stan H.
=======