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प्रश्न
The class size of the interval 80 – 85 is ______.
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उत्तर
The class size of the interval 80 – 85 is 5.
Explanation:
The size of a class interval = Upper limit – Lower limit
⇒ The size of a class interval = 85 – 80
⇒ The size of a class interval = 5
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| Weights (in kg.) |
Tally Marks | Frequency (Number of persons) |
| 40 – 50 | `\cancel(bb|bb|bb|bb|) \cancel(bb|bb|bb|bb|) bb|bb|` | |
| 50 – 60 | `\cancel(bb|bb|bb|bb|) \cancel(bb|bb|bb|bb|) bb|bb|bb|bb|` | |
| 60 – 70 | `\cancel(bb|bb|bb|bb|) bb|` | |
| 70 – 80 | `bb|bb|` | |
| 80 – 90 | `bb|` |
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