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JEE Main Math Class 12 Statistics Part 2 Questions

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Question : 4

Total: 28

The mean and standard deviation of 20 observations are found to be 10 and 2, respectively. On respectively, it was found that an observation by mistake was taken 8 instead of 12 . The correct standard deviation is

[6 Apr 2024 Shift 1]

√3.86
1.8
√3.96
1.94

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