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JEE 2023 — Mathematics PYQ

JEE | Mathematics | 2023

The mean and variance of the marks obtained by the students in a test are $10$ and $4$ respectively. Later, the marks of one of the students is increased from $8$ to $12$ . If the new mean of the marks is $10.2$ , then their new variance is equal to:

JEE 2023 — Mathematics PYQ

Choose the correct answer:

Explanation

Solution:

Correct Option: (1) 3.96

Explanation

Solution:

Correct Option: (1) 3.96

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