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jee_main_2025_24_jan_morning - Statistics Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #64 Variance and Mean of Corrected Data
For a statistical data x_1, x_2, ldots, x_10 of 10 values, a student obtained the mean as 5.5 and sum_i=1^10 x_i^2 = 371 . He later found that he had noted two values in the data incorrectly as 4 and 5, instead of the correct values 6 and 8, respectively. The variance of the corrected data is :
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