The mean and standard deviation of observations are and , respectively. By mistake one observation is taken as instead of . If the correct mean and the correct standard deviation are and respectively, then is equal to:
- A
- B
- C
- D
MCQMediumJEE Main 2025 · 7 April, Shift 1Measures of Dispersion
Mathematics Question from JEE Main 2025 · 7 April, Shift 1
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