x | 3 | 5 | 9 | 11 | 13 |
f: | 6 | 8 | p | 8 | 4 |
Class | 0-20 | 20-40 | 40-60 | 60-80 | 80-100 |
Frequency | 7 | p | 10 | 9 | 13 |
Variable | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 | 60-70 | 70-80 | Total |
Frequency | 12 | 13 | ? | 65 | ? | 25 | 18 | 229 |
Class Interval | Frequency |
0-5 5-10 10-15 15-20 20-25 25-30 30-35 35-40 | 7 10 x 13 y 10 14 9 |
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