The given Bar Graph presents the number of students of two schools for six years.
What is the average (Correct to two decimal places) of total students in schools A and B taken together during the six year period?
Solution
Total students in School A and B together in 2008 = 640+550 = 1190
Total students in School A and B together in 2009 = 800+820 = 1620
Total students in School A and B together in 2010 = 500+600 = 1100
Total students in School A and B together in 2011 = 700+750 = 1450
Total students in School A and B together in 2012 = 900+500 = 1400
Total students in School A and B together in 2013 = 750+480 = 1230
The average of total students in schools A and B taken together during the six year period$$=\frac{1190+1620+1100+1450+1400+1230\ }{6}=\frac{7990}{6}=1331.67$$
Hence, the correct answer is Option C
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