Réponse :
Explications étape par étape
2) 2410/4513 = 0.5340 = 53.40%
3) (631+1547)/4513 = 0.4823 = 48.26%
4) 863/4513 = 0.1912 = 19.12%
5) 631/4513 = 0.1398 = 13.98 %
exo2
0.95 P 0.002x0.95 = 0.0019 = 0. 19 %
Malade
0.002 0.05 N 0.002x0.05 = 0.0001 = 0.01 %
H
0.998 0.02 P 0.998x0.02=0.01996= 1.99%
Pas malade
0.98 N 0.998x0.98= 0.9780 = 97.80%
Malade et Posisitif = 0.19 %
Positif = 0.19 + 1.99 = 2.18 %
NpPas malade négatif = 97.80%
3)
1) taux évolution 3312/3534 = 0.9371 ==> 1-0.9371 =0.06282 = 62.82%
2) augmantation = 12% = 0.12
Coeff multiplicateur = 1+0.12 = 1.12
3312 x 1.12 = 3709 habitants
4)
1) Diminution de 12 % = coeff multiplicateur = 1-0.12 = 0.88
P x 0.88 = 3.96 ==> p = 3.96/0.88 = 4.50 €
2) Augmentation de 16% = coeff = 1+0.16 = 1.16
P x 1.16 = 95.12 $ P = 95.12/1.16 = 82 $
