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.
Question 157
The average of passed students in the years 2008, 2009, 2012 approximately is
Solution
No. of passed students in 2008 = 110
No. of passed students in 2009 = 138
No. of passed students in 2012 = 156
=> Total no. of students passed in 2008, 2009 & 2012 = 110+138+156 = 404
=> Average students passed over the three years = 404/3 = 134.67
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