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NDA Math Statistics Part 2

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Question : 35

Total: 44

The average of a set of 15 observations is recorded, but later it is found that for one observation, the digit in the tens place was wrongly recorded as 8 instead of 3. After correcting the observation, the average is

reduced by ‌
1
3
increased by ‌
10
3
reduced by ‌
10
3
reduced by 50

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