Verified answer

OK, here you go :)

We need to use the formula :

P(A ∪ B) = P(A) + P(B) - P(A ∩ B)

Using this we find that :

P(A ∪ B) = P(A) + P(B) - P(A ∩ B)

11/15 = 2/3 + 4/5 - P(A ∩ B)

P(A ∩ B) = 2/3 + 4/5 - 11/15

P(A ∩ B) = 11/15

Hence the correct answer is A) 11/15

Hope this helps !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

P(A U B) = P(A) + P(B) - P(A ∩ B)

11/15 = 2/3 + 4/5 - P(A ∩ B)

P(A ∩ B) = 2/3+4/5 -11/15

= 11/15

P(A U B) = P(A) + P(B) - P(A ∩ B)

11/15 = 2/3 + 4/5 - P(A ∩ B)

11/15 = 10/15 + 12/15 - P(A ∩ B)

P(A ∩ B) = 11/15

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

11/15 = 2/3 + 4/5 - P ( A n B )

P ( A n B ) = 10/15 + 12/15 - 11/15

P ( A n B ) = 11/15_______option A