Study the following bar diagram carefully and answer the four questions.Production of buses of company A and company B over the given years.
The average production (in thousand) of company A over the years 2010, 2011, 2012, 2013 is
No. of buses produced by company A in (in '000s) :
2010 = 70
2011 = 77
2012 = 85
2013 = 93
Total buses = 70+77+85+93 = 325
=> Average production over these four years = 325/4 = 81.25
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