The mean and variance of $n$ observations are $8$ and $16$, respectively. If the sum of the first $(n – 1)$ observations is $48$ and the sum of squares of the first $(n – 1)$ observations is $496,$ then the value of $n$ is: [JEE Main 2026, 2 Apr (Shift 2)]

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The mean and variance of \(n\) observations are \(8\) and \(16\), respectively. If the sum of the first \((n – 1)\) obse…

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