GRE Scores at the Top-Ranked Engineering Schools/ The average quantitative GRE scores for top 30 graduate schools of engineering are listed. How to construct the grouped frequency distribution and cumulative frequency distribution with five classes?
767 770 761 760 771 768 776 771 756 770
763 760 747 766 754 771 771 778 766 762
780 750 746 764 769 759 757 753 758 746