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NCERT Exemplar Ch 12
CBSE_NCERT_EXEMPLAR_CH12
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
$5-10$
$10-15$
$15-20$
$20-25$
Step-by-Step Solution
Key Concept: The modal class is the class interval with the maximum frequency.
Stepwise Solution:
Maximum frequency is $20$, which corresponds to class interval $15-20$. [1.0 Mark]
Marking Scheme:
• Identifying max frequency 20 and modal class $15-20$: 1.0 Mark
Correct Answer: $15-20$
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