A professor has recorded exam grades for 40 students in his class, but one of the grades is no longer readable. If the mean score on the exam was 82 and the mean of the 39 readable scores is 84, what is the value of the unreadable score?
A professor has recorded exam grades for 40 students in his class, but one of the grades is no longer readable. If the mean score on the exam was 82 and the mean of the 39 readable scores is 84, what is the value of the unreadable score?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 8SGR
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Question
A professor has recorded exam grades for
40
students in his class, but one of the grades is no longer readable. If the
82
and the mean of the
39
readable scores is
84,
what is the value of the unreadable score?
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