Probabilités, cours de seconde - MathsFG

•
•
•xii
x1x2xnn
n
p1p2pn
•i n
•
E={x1;x2;x3;. . . ;xn}
12
100 = 0,12 f1+f2+. . . +f6=.........

p1p2....................
p1= 2 ×p2.................. .................. ........................... ..............
c
n1 000
d ENT (×6) + 1
d= 6
c c + 1
c
E r
•A
A
•
• ∅
•E
•
•
•

•A .......... 6P(A)6...........
•
•P(∅) = ........
•P(E) = ........
n p
p=..............
i pipi=............
A
............
H
C
H
H P (H) = ......
C
C P (C) = ...........

P(A) = ................
A B
•A∩B A B
A B
•A B A ∩B=.............
A B
•A∪B A B
A B
•¯ A
A

P E
•A B
.............
•A B
P(A∪B) = P(A) + P(B)
•A
.................
•P(A) + P(B)pi
A∩B P (A∪B)
P(A∩B)P(A) + P(B)P(A∪B)
•A B A ∩B=∅P(A∩B)=0
•E=A∪¯ A A∩¯ A=∅A¯ A P (E) = P(A∪¯ A) = P(A)+P(¯ A)
P(E) = 1 1 = P(A) + P(¯ A)P(¯ A) = 1 −P(A)
1
32
C R
P(C).................. P (R).......................
R∩C P (R∩C).........................
R∪C
......
...............