Stat Formulas[1]
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Mean
µ = ∑Xi n
Variance σ^2 = ∑(Xi-µ)^2 n Standard deviation σ = √σ^2 Median = where the population is centered. Mode = the score in the population that occurs most frequently.
µ = ∑Xi n
Variance σ^2 = ∑(Xi-µ)^2 n Standard deviation σ = √σ^2 Median = where the population is centered. Mode = the score in the population that occurs most frequently.
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