If the mean and variance of five observations are \frac{24}{5} and \frac{194}{25} respectively and the mean of first four observations is \frac{7}{2}, then the variance of the first four observations in equal to [29-Jan-2024 Shift 2]

JEE Main 29-Jan-2024 Shift 2 Solved Paper

Section: Mathematics

Question : 4 of 90

Marks: +1, -0

If the mean and variance of five observations are ‌

and ‌

194

respectively and the mean of first four observations is ‌

, then the variance of the first four observations in equal to

[29-Jan-2024 Shift 2]

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