In a group of 200 students, the mean and standard deviation of scores were found to be 40 and 15, re….

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In a group of 200 students, the mean and standard deviation of scores were found to be 40 and 15, respectively. Later on, it was found that two scores 43 and 35 were misread as 34 and 53, respectively. The corrected mean of scores is

Options :-

1. 40.95
2. 39.0
3. 39.95
4. 43

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