Probability

Question 1

Independent Probability

Answer 1

When the probability of an event is not affected by the other event

Question 2

Conditional Probability

Answer 2

The probability that the other event has occurred

Question 3

Mutually Exclusive

Answer 3

When 2 event can’t both happen at the same time (not independent)

Question 4

Dependent Probability

Answer 4

When the occurrence of an event effects the probability of the other

Question 5

P(A I B) (Conditional)

Answer 5

P(A I B) = P(A ∩ B) / P(B)

Question 6

P(A ∪ B) (Conditional)

Answer 6

P(A ∪ B) = P(A) + P(B) − P(A ∩ B)

Question 7

P(A I B) (Independent)

Answer 7

P(A I B) = P(A)

Question 8

P(A ∩ B) (Independent)

Answer 8

P(A ∩ B) = P(A) × P(B | A)