Question

A is random event if P(A):P(A_)=1:2 then find P(A_)​

Answer 1

Answer:

P(A):P(A_)=1:2

Let P(A) be x and P(A_) be 2x

P(A)+P(A_)=1

x+2x=1

3x=1

x=1/3

P(A_)=2x=2(1/3)

P(A_)=2/3