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Statistics

RD Sharma

CBSE

Grade 10

Question:

If the mode of the data $2, 4, 6, 7, 5, 6, 10, 6, 7, 2k+1$ is $6$, then the value of $k$ is:
(a) $2.5$
(b) $2$
(c) $3$
(d) $1.5$

Step-by-Step Solution

Key Concept: $2k + 1 = 6 \Rightarrow 2k = 5 \Rightarrow k = 2.5$.

$2k + 1 = 6 \Rightarrow k = 2.5$. [1.0 Mark]

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🎯 Official CBSE Marking Scheme:
Solving $k = 2.5$: 1.0 Mark

Correct Answer: $2.5$

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