Study the following bar graph and answer the question that follows. In how many years was the export more than the average for the given period?

6 4 5 3

4

Average export = \(\frac{7.2+8.5+9.8+10.9+11.8+11.5+12.4 }{7}\) = \(\frac{ 72.1 }{7}\) = 10.3 Export in year 2008 , 2009 & 2010 is less than average export i.e. 10.3. Ans :-  3