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Statistics
NCERT Exemplar
CBSE
Grade 10
Question:
For the following distribution, the modal class is: Class: 0-5, 5-10, 10-15, 15-20, 20-25 Frequency: 10, 15, 12, 20, 9 (a) $5-10$ (b) $10-15$ (c) $15-20$ (d) $20-25$
Step-by-Step Solution
Key Concept: The modal class is the class interval with the maximum frequency.
Maximum frequency is $20$, which corresponds to class interval $15-20$. [1.0 Mark]
--- 🎯 Official CBSE Marking Scheme: Identifying max frequency 20 and modal class $15-20$: 1.0 Mark
Correct Answer:$15-20$
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