Calculateur d'écart-type

Population standard deviation (σ) is used when you have data for an entire population (divides by N). Sample standard deviation (s) is used when estimating for a larger population using a representative subset (divides by N-1, Bessel's correction).

La mensualité est calculée selon des formules d'amortissement constantes basées sur le capital, le taux d'intérêt et la durée du prêt. Les remboursements anticipés permettent de réduire le coût global.

Variance is the average of squared differences from the mean. Standard deviation is simply the square root of variance.

Bessel's correction uses N-1 instead of N in the denominator when calculating sample variance to correct bias in estimating population variance.