Let $9=x_1

Question

Let $9=x_1<x_2<\ldots<x_7$ be in an A.P. with common difference $d$. If the standard deviation of $x_1, x_2 \ldots, x_7$ is 4 and the mean is $\bar{x}$, then $\bar{x}+x_6$ is equal to: [JEE Main 2023, 1 Feb (Shift 2)]

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Let \(9=x_1<x_2<\ldots<x_7\) be in an A.P. with common difference \(d\). If the standard deviation of \(x_1, x_…

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Let \(9=x_1&lt;x_2&lt;\ldots&lt;x_7\) be in an A.P. with common difference \(d\). If the standard deviation of \(x_1, x_…

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Let \(9=x_1<x_2<\ldots<x_7\) be in an A.P. with common difference \(d\). If the standard deviation of \(x_1, x_…