Direction: 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.
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The decrease in percentage of passed students from 2011 to 2012 approximately is
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- 8.25%
- 8.27%
- 8.24%
- 8.22%
Correct Option: C
According to given table, we have
Number of passed students in 2011 = 170
Number of passed students in 2012 = 156
Decrease = 170 - 156 = 14
| Required percentage decrease = |  | Decrease |  | × 100 | |
| Number of passed students in 2011 |
| Required percentage decrease = | = 8.24% | 170 |
