Example 2 Three groups 40, 50 and 10 students have average scores in mathematics as 60 , 40 and 55 respectively. Find the average score of all students.
Example 2 Three groups 40, 50 and 10 students have average scores in mathematics as 60 , 40 and 55 respectively. Find the average score of all students.
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section11.4: Two-ways Tables
Problem 8E
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Transcribed Image Text:Example 2
Three groups 40, 50 and 10 students have average scores in mathematics as 60,40
and 55 respectively. Find the average score of all students.
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