A) The "Addition Rule vs. Multiplication Rule"

When calculating probabilities, we use the Addition Rule when we are calculating the probability of:

the joint or successive occurrence of multiple events

when we are only sampling with replacement

either one event or another event occurring

when we are only sampling without replacement

B) When calculating probabilities, we use the Multiplication Rule when we are calculating the probability of:

joint or successive occurrences of multiple events

when we are only sampling with replacement

either one event or another event occurring

when we are only sampling without replacement

C) The probability of rolling EITHER a 1 or a 6 in one die toss

(1/6 + 1/6) = .3300

(1/6 x 1/6) = .0278

D) Suppose you sample 2 people from a population of 110 people (with 50 men and 60 women), with replacement. What is the probability that you will draw a woman on the first sample and a woman on the second sample?

60/110 + 60/110 = 1.0909

60/110 * 60/110 = .2976

60/110 + 59/110 = 1.082

60/110 * 59/109 = .2953