A {2, 4, 6, 8 10}
B {2, 3, 5, 7}
ա) A U B = {2, 3, 4, 5, 6, 7, 8, 10}
բ) A Ո B = {2}
ա) 1/9
բ) 4/9
գ) 3/9 = 1/3
40 + 50 — 20 = 70
70/100 = 7/10 = 0.7
Պատ.՝ 0.7:
P(A) = 0.7 , P(B) = 0.26
0.7 + 0.26 = 0.96
11 + 12 + 7 — 24 = 30 — 24 = 6
6/24 = 1/4 = 0.25
80 + 70 — 100 = 150 — 100 = 50 %
100 — 79 = 21
15 + 9 = 24
24 — 21 = 3 %
A {1, 10, 11, 20, 21, 30, 31, 40, 41, 50, 51, 60, 61, 70, 71, 80, 81, 90, 91, 100}
B {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97}
C {3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99}
ա) P(A) = 20/100 = 1/5 = 0.2
P(B) = 25/100 = 1/4 = 0.25
P(C) = 33/100 = 0.33
__
բ) A Ո B = {11, 31, 41, 61, 71}
P(A Ո B) = 5/100 = 0.05
A Ո C = {21, 30, 51, 60, 81, 90}
P(A Ո C) = 6/100 = 0.06
B Ո C = {3}
P(B Ո C) = 1/100 = 0.01
__
գ) (A Ս B) = {1, 2, 3, 5, 7, 10, 11, 13, 17, 19, 20, 21, 23, 29, 30, 31, 37, 40, 41, 43, 47, 50, 51, 53, 59, 60, 61, 67, 70, 71, 73, 79, 80, 81, 83, 89, 90, 91, 97, 100}
P(A Ս B) = 40/100 = 4/10 = 0.4
(A Ս C) = {1, 3, 6, 9, 10, 11, 12, 15, 18, 20, 21, 24, 27, 30, 31, 33, 36, 39, 40, 41, 42, 45, 48, 50, 51, 54, 57, 60, 61, 63, 66, 69, 70, 71, 72, 75, 78, 80, 81, 84, 87, 90, 91, 93, 96, 99,100}
P(A Ս C) = 47/100 = 0.47
(B U C) = B {2, 3, 5, 6, 7, 9, 11, 12, 13, 15, 17, 18, 19, 21, 23, 24, 27, 29, 30, 31, 33, 36, 37, 39, 41, 42, 43, 45, 47, 48, 51, 53, 54, 57, 59, 60, 61, 63, 66, 67, 69, 71, 72, 73, 75, 78, 79, 81, 83, 84, 87, 89, 90, 93, 96, 97, 99}
P(B Ս C) = 57/100 = 0.57
~ Կարոլինա Եսայանի ուսումնական բլոգ ~ 