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Instructions
Study the following frequency polygon and answer the questions. Given a line graph showing the number of students passed in Higher Secondary Examination in a school over the years 2008 to 2013.
Solution
No. of students passed in 2008 = 110
No. of passed students in 2011 = 170
=> % increase = $$\frac{170-110}{110}$$ * 100 = 54.54%
= ~54.5%
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