Statistics and Probability: JEE Main 2026 Mathematics question

JEE Main 2026 · 2 Apr, Evening shift · Q9

JEE Main 20262 Apr, Evening shiftMathematicsEasyStatistics and Probability258× since 2002

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, Evening shift · Q9

JEE Main 20262 Apr, Evening shiftMathematicsEasyStatistics and Probability258× since 2002

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 :

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