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Statistics

RD Sharma

CBSE

Grade 10

Question:

The median of the numbers $4, 7, 2, 9, 10, 12, 15$ is:
(a) $9$
(b) $7$
(c) $10$
(d) $8$

Step-by-Step Solution

Key Concept: Arranged data: $2, 4, 7, 9, 10, 12, 15$. Median is 4th observation $= 9$.

Arranged: $2, 4, 7, 9, 10, 12, 15 \Rightarrow \text{Median} = 9$. [1.0 Mark]

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🎯 Official CBSE Marking Scheme:
Evaluating median $= 9$: 1.0 Mark

Correct Answer: $9$

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