Answer
(a) 11.31
(b) Average of all class is more accurate and precise as compare to the average of individual groups.
Work Step by Step
Compute average of whole class
Compare with averages of individual groups
General Chemistry (4th Edition)
by McQuarrie, Donald A.
Published by
University Science Books
ISBN 10:
1891389602
ISBN 13:
978-1-89138-960-3
Chapter 1 Chemistry and the Scientific Method - Problems - Page 37: 60
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