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Statistics
RD Sharma
CBSE
Grade 10
Question:
The upper limit of the median class for the following data is: Marks: 0-10, 10-20, 20-30, 30-40, 40-50 Frequency: 8, 10, 12, 15, 5 (a) $30$ (b) $20$ (c) $40$ (d) $25$
Step-by-Step Solution
Key Concept: $N = 50 \Rightarrow N/2 = 25$. $cf$: 8, 18, 30. Class is $20-30 \Rightarrow$ Upper limit is $30$.
Median class is $20-30 \Rightarrow$ Upper limit $= 30$. [1.0 Mark]
--- 🎯 Official CBSE Marking Scheme: Evaluating upper limit $= 30$: 1.0 Mark
Correct Answer:$30$
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