Page 247 - Math Grade 11 (Advance)

PROEUS DARA

1. A = unti9JnltllRWQJWj2 l ' B = LR1tl9JnltllRWQJ&ru2~ M~
I 1
n(AnB) = 10 , n(B) = 6x5 = 30

P(A/B) = P(A n B) = l
P(B) 3
2. n. P(A/B) = 5x4x4 = ~ Pc/(AnB) = 5x4x 1 =!
5x5x4 5 ' 5x4x4 4
P(A/c) = P(Anc) = P(c) = 5x4x 1 = 1
P(c) P(c) 5x4xl
2. P(A/c);t:P(A) : A Sb C Hlu{jru~
5 5 4 = ~ P(A/B) = ~
~. P(A) = ~ x
6x5x4 6 ' 5
P(A/B);t:P(A) : A Sb B HludliJ~
1 3 3
3. n. P(A) = , P(B) = , P(c/B) = S
4 4
I C
1
9
2. P(c) = P(A n C)+ P(B n C) = - +- = - 23 = 0 575
8 20 40 . yA<c
l
~. '(A/c)=~= 2. = 021' ~B yc
23 23 .
40 <.._______c
4

4. I 1
P(B) = P(BnA)+P(BnG) = x0.7+ xo.5 = 0.6
2 2
P(G/B) = P(B n G) = 0.25 = 0.4I6
P(B) 0.6

1. n. s = {{1, 1},{1, 2},{1, 3},{2, 2},{2, 3}}
P({l l}) = c(3,2) = 1. P({l 21 ) = c(3,l)xc(2,I) = i_
' c(6,2) 15 ' ' f c(6,2) 15

3 1 2
P({l, 3}) = , P({2, 2}) = I , P({2, 3}) = IS
15 5
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