Statistics Formulas for JEE 2026
24 formulas in Statistics (Maths) How many can you recall?
Arithmetic mean (AM) of ungrouped data
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Median of ungrouped data
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Mode of discrete data
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Population variance about the mean
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Standard deviation
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Coefficient of variation (CV)
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Combined mean of two groups
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Combined variance (two groups, internal variances about own means)
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Mean by assumed-mean (shortcut) method
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Mean of a discrete frequency distribution
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Variance shortcut: mean of squares minus square of mean
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Mean of grouped data: step-deviation method
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Arithmetic mean (ungrouped data)
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Mean of grouped data (direct method)
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Assumed mean (shortcut) for grouped data
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Median (ungrouped)
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Median (grouped)
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Mode (discrete data)
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Mode (grouped / modal class)
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Combined mean of two groups
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Combined variance (two groups, means known)
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Variance σ² (population form) and shortcut
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Standard deviation σ
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Coefficient of variation (CV)
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