1. If the probability of an event is .3, that means
a. the event has a 70% chance of not occuring
b. the complement of the event has a 30% chance of occuring
c. the event has a 30% of not occuring
d. the complement of the event has a 70% chance of not occuring
2. Calculating the probability of an outcome is useful in all of the following except
a. inferential statistics
b. descriptive statistics
c. predicting a future outcome
d. relative frequency
3. When are two events mutually exclusive?
a. they overlap on a Venn diagram
b. if one event occurs, the other event cannot
c. probability of one affects the probability of the other
d. both (a) and (b)