Q10Short answerExercise 13.3
The following table shows the cumulative frequency distribution of marks of 800 students in an examination: Marks Number of students Below 10 10 Below 20 50 Below 30 130 Below 40 270 Below 50 440 Below 60 570 Below 70 670 Below 80 740 Below 90 780 Below 100 800 Construct a frequency distribution table for the data above. STATISTICS AND PROBABILITY 169
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Marks Number of students 0-10 10 10-20 40 20-30 80 30-40 140 40-50 170 50-60 130 pu T 60-70 100 70-80 70 80-90 40