Question

anyone explain this:​

Answer 1

Answer:

it is a complementary event.

p(A)+p(/A)=1

Step-by-step explanation:

p(A)-p(A/)=0.5

∆p(A)=0.95.

Answer 2

Answer:

p(-A) = p(A) - 0.5

now, p(A) + p(-A) = 1

p(A) + p(A) - 0.5 = 1

2 p(A) = 1.5

p(A) = 1.5/ 2 = 0.75