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Mathematics · 2024 · 1 mark
CBSE 2024 · Region 1 · Set 1 · Q9
For some data $\displaystyle x_{1}, x_{2}, \ldots \ldots x_{n}$ with respective frequencies $\displaystyle f_{1}, f_{2}, \ldots . . f_{n}$, the value of $\displaystyle \sum_{1}^{n} f_{i}\left(x_{i}-\bar{x}\right)$ is equal to :
Official answer
From CBSE’s own marking scheme for this paper.
(D)
$\displaystyle 0$
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CBSE Class 10 Mathematics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.