Question

For a random event A, P(A):P(Ā) = 6:15 find P(Ā)​

Answer 1

Answer:

         P(Ā) = 5/7

Step-by-step explanation:

Put p = P(Ā).  Then P(A) = 1-p.  So...

    P(A):P(Ā) = 6:15

⇒  (1-p)/p = 6/15 = 2/5

⇒  5(1-p) = 2p

⇒  5 - 5p = 2p

⇒  7p = 5

⇒   p = 5/7