Probability

Question 1

Probability

Answer 1

measures the likelihood that an even will occur

Question 2

Formula for Probability (if all the possible outcomes are equally likely to occur)

Answer 2

Probability = (# of Desired Outcomes)/(# of Possible Outcomes)

Question 3

Probability of Multiple Independent Events

Answer 3

Multiply the probabilities of the individual events

Question 4

Probability of Multiple Dependent Events

Answer 4

Multiply the probabilities of the individual events, BUT you have to calculate the probability of each dependent event as if the preceding event had resulted in the desired outcome

Question 5

“Probability of A or B or both” Formula

Answer 5

P(A or B) = P(A) + (P)B - P(A and B)