IIT JEE , AIEEE Forum - Mathematics , Algebra

kasirajan.1990

1)A and B are two events such that P(A)=0.54,P(B)=0.69,and P(A

B)=0.35

find P(A union B)and(A'intersection B')and P(A intersection B')and P(B intersection A')

please send the answers with solution

vasanth

P(A U B) = P(A) +P(B) -P(A

B)

= 0.54 +0.69 - 0.35

P(A U B) = 0.88

vasanth

P(A'

B') = P(AUB)'

= 1 - P(AU B) = 0.12

PLZZZZZZ TELL me if i'm wrong

vasanth

P(A

B') =P(A) - P(A

B)

=0.54 -0.35

= 0.19

vasanth

P(B

A') = P(B) - P(A

B)

=0.69 -0.35

= 0.34

plzzzzzzzzzzzz rate ma solutions

cheeeeeeers

iitkgp_bipin

P(A

B) = P(A) + P(B) - P(A

B) = 0.54 + 0.69 - 0.35 = 0.88

P(A'

B') = P(A

B)' = 1 - 0.88 = 0.12

P(A'

B) = P(A) - P(A

B) = 0.54 - 0.35 = 0.19

P(A

B') = P(B) - P(A

B) = 0.69 - 0.35 = 0.34