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The following is the distributin of time spent in the library by students in a school.
 
Time spent(in minutes)
\(10 - 20\)
\(20 - 30\)
\(30 - 40\)
\(40 - 50\)
\(50 - 60\)
\(60 - 70\)
\(70 - 80\)
\(80 - 90\)
Number of students
\(25\)
\(40\)
\(33\)
\(28\)
\(30\)
\(20\)
\(16\)
\(8\)
 
Draw a frequency polygon using histogram.
 
Important!
This is a self-assessment task. Solve this question and assess the solution steps after completing the test on your own.