Correct Mean Calculation (Jee Mains) | ExamDuo
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Central Tendency Measures
Medium
Correct Mean Calculation
The mean and standard deviation of 100 observations were calculated as 40 and 5.1, respectively by a student who took by mistake 50 instead of 40 for one observation.
Find the correct mean.
SELECT ONE OPTION
A
38.9
B
37.9
C
39.9
D
36.9
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