stats.py

Created by maxime-rigotti

Created on January 08, 2023

488 Bytes

  moyenne
X=(X1+X2+X3+...+Xn)/n
  Variance
V=(X1**2+X2**2+...Xn**2)/n-X**2

  exemple
droite d'ajutement
x=0
y=0.122*0+4.961
A(0.4.9)

x=1
y=0.122*1+4.961
B=(1.5)
les points sont A(0.4.9) et B(1.5)

donner une estimation du chiffre d'affaire en 2015
z=lny=0.122x+4.961
y=e0.122x+4.961
y12=e0.122*12+4.961
y=617.08

dans combien de tmps chiffre d'affaires a 1M
y>1000 
e0.122x+4.961>1000
ln(0.122x+4.961)>ln1000
0.122x+4961>ln1000
0.122x>ln1000-4.961
x>ln1000-4.961/0.122
x>16

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