52 | 99 | 92 | 86 | 84 |
63 | 72 | 76 | 95 | 88 |
92 | 58 | 65 | 79 | 80 |
90 | 75 | 74 | 56 | 99 |
Class interval Fi C Fi R Fi C Rfi % F 50-59 3 3 0.15 0.15 15% 60-69 2 5 0.1 0.25 10% 70-79 5 10 0.25 0.5 25% 80-89 4 14 0.2 0.7 20% 90-99 6 20 0.3 1 30%
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