JEE Main 9 April 2017 Paper Solved Paper

Section: Mathematics

Question : 87 of 90

Marks: +1, -0

The sum of 100 observations and the sum of their squares are 400 and 2475,respectively. Later on, three observations,3, 4 and 5, were found to be incorrect. If the incorrect observations are omitted, then the variance of the remaining observations is :

[Main 9 April 2017]

8.25
8.50
8.00
9.00

Validate

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