mathsstatistique.py

Created on April 09, 2024

495 Bytes

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QUARTILE :
Série:8;10;11;13;14;16;17;18;
20;25;30.

Série de 11 valeurs dans 
l'ordre croissant 
25/100 x 11 = 2,75
= 1er quartile par la 
troisièeme
valeur: Q1=11
L'écart interquartile est
Eq= 20-11=9

Variance/Ecart type:

On considère une série 
statistique x1,x2,...,xp
d'effectifs respectifs 
n1,n2...,np et de moyenne x
VARIANCE:
n1(x1-x)+n2(x2-x)...+np(xp-x)
             /
       n1+n2+...+np
       
Ecart type= O (sigma)
=Racine carrée de la variance

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