Z-score Calculator

The z-score calculator is designed to calculate a standardized z-score based on the raw score, population mean, and standard deviation.

z =  
(x - μ)
σ

Calculate Z-score Using Sample Mean and Size

z =  
(x̄ - μ)
(σ / √n)

Calculate Z-score Using A Data Sample

z =  
(x̄ - μ)
(σ / √n)