Class Interval | Frequency | Class | Frequency |
0-100 | 2 | 500-600 | 20 |
100-200 | 5 | 600-700 | \[{{f}_{2}}\] |
200-300 | \[{{f}_{1}}\] | 700-800 | 9 |
300-400 | 12 | 800-900 | 7 |
400-500 | 17 | 900-1000 | 4 |
A) 8, 14
B) 11, 17
C) 9, 15
D) 10, 16
Correct Answer: C
Solution :
Class interval | \[({{x}_{i}})\] | Frequency \[({{f}_{i}})\] | Cumulative frequency |
0-100 | 50 | 2 | 2 |
100-200 | 150 | 5 | 7 |
200-300 | 250 | \[{{f}_{1}}\] | \[7+{{f}_{1}}\] |
300-400 | 350 | 12 | \[19+{{f}_{1}}\] |
400-500 | 450 | 17 | \[36+{{f}_{1}}\] |
500-600 | 550 | 20 | \[56+{{f}_{1}}\] |
600-700 | 650 | \[{{f}_{2}}\] | \[56+{{f}_{1}}+{{f}_{2}}\] |
700-800 | 750 | 9 | \[65+{{f}_{1}}+{{f}_{2}}\] |
800-900 | 850 | 7 | \[72+{{f}_{1}}+{{f}_{2}}\] |
900-1000 | 950 | 4 | \[76+{{f}_{1}}+{{f}_{2}}\] |
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