Question

formula of statics

OK araya ​

Answer 1

Step-by-step explanation:

Statistics Formulas Used on Stat Trek

Population mean = μ = ( Σ Xi ) / N.

Population standard deviation = σ = sqrt [ Σ ( Xi - μ )2 / N ]

Population variance = σ2 = Σ ( Xi - μ )2 / N.

Variance of population proportion = σP2 = PQ / n.

Standardized score = Z = (X - μ) / σ

Answer 2

Answer:

Population mean = μ = ( Σ Xi ) / N.

Population standard deviation = σ = sqrt [ Σ ( Xi - μ )2 / N ]

Population variance = σ2 = Σ ( Xi - μ )2 / N.

Variance of population proportion = σP2 = PQ / n.

Standardized score = Z = (X - μ) / σ

Population correlation coefficient = ρ = [ 1 / N ] * Σ { [ (Xi - μX) / σx ] * [ (Yi - μY) / σy ] }

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