If the mean and variance of six observations $7,10,11,15$, $a, b$ are 10 and $\frac{20}{3}$, respectively, then the value of $|a-b|$ is equal to

[JEE Main 2021, 20 Jul (Shift 2)]

Question

If the mean and variance of six observations $7,10,11,15$, $a, b$ are 10 and $\frac{20}{3}$, respectively, then the value of $|a-b|$ is equal to [JEE Main 2021, 20 Jul (Shift 2)]

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If the mean and variance of six observations \(7,10,11,15\), \(a, b\) are 10 and \(\frac{20}{3}\), respectively, then th…

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