Probability

Question 1

How do you determine if two events are independent?

Answer 1

P(A and B) = P(A) × P(B)

Question 2

General equation for P(AUB)

Answer 2

P(AUB) = P(A) + P(B) - P(AnB)

Question 3

General Equations For P(A|B)

Answer 3

P(A|B) = P(AnB) ÷ P(B)

Question 4

Equation for P(AnB) when Mutually exclusive

Answer 4

P(AnB) = 0
Can’t happen at the same time

Question 5

Equation for P(AUB) when Mutually Exclusive

Answer 5

P(AUB) = P(A) + P(B)

Question 6

Equation for P(A|B) when independent

Answer 6

P(A|B) = P(A)