Two classes took an exam. In the first class, the average score was exactly 78%. In the second class, the average score was exactly 86%. But when the two classes were treated as one large group, the average was not 82%.
Two classes took an exam. In the first class, the average score was exactly 78%. In the second class, the average score was exactly 86%. But when the two classes were treated as one large group, the average was not 82%.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Two classes took an exam. In the first class, the average score was
exactly 78%. In the second class, the average score was exactly
86%. But when the two classes were treated as one large group, the
average was not 82%.
Expert Solution
Step 1: According to information given
Two classes took an exam
In the first class, the average score was
exactly 78%.
In the second class, the average score was exactly 86%.
But when the two classes were treated as one large group, the average was not 82%
Step by step
Solved in 3 steps
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