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JEE Main Math Class 12 Statistics Part 1 Questions

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Question : 5 of 115

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The mean and variance of 7 observations are 8 and 16 respectively. If one observation 14 is omitted a and b are respectively mean and variance of remaining 6 observation, then a+3b−5 is equal to _______.

[30-Jan-2023 Shift 1]

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