Probability

Question 1

Combined probability

P(AUB)

Answer 1

Is p(A) + p(B) every thing inside including the shared middle section.
P(a) + p(b) -p(a intercept b)

Question 2

P(a intercept b)

Answer 2

The middle section

P(a) + p(b) -p(AUB)

Question 3

Mutually exclusive events

Answer 3

P( a intercept b) = 0

Question 4

Independent events

Answer 4

P(AUB) =p(a) x p(b)

Question 5

Conditional probability

Answer 5

Possibility that thing b occurs first inorder for thing b to occur. : p(a/b)

The possibility of this is p(a intercept b) over p(b)

Or

P(b/a) : p(a intercept b) over p(a)