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Question

The arithmetic mean of 100 observations was 50. Later on, it was found that two observations were misread as 82 and 6 instead of 182 and 56. What is the value of the corrected mean?

This question was previously asked in
CDS 2 2025 Maths Question Paper (14-Sep-2025)
The correct answer is

50.1

The corrected mean is calculated by adjusting the misread values and recalculating the mean. The corrected mean is found to be 50.1. Hence, the correct answer is (a) 50.1.

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Important Questions from Statistics

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