1.The expression P(A and B) = P(A)P(B) is valid if:

a) A and B are independent

b) A and B are dependent

c) A and B are mutually exclusive

2.Two probability can be multiplied when we are asked:

a) an 'or' question and the events are independent

b) an 'or' question and the events are mutually exclusive

c) an 'and' question and the events are independent

d) an 'and' question and the events are mutually exclusive

3.If A is the event" tomorrow it will rain" and B is the event "I will win the lottery" then

a) A and B are mutually exclusive and independent events

b) A and B are mutually exclusive but not independent events

c) A and B are independent events but not mutually exclusive

4.If an event is certain to occur, its probability is_______, and if an event is certain not to occur, its probability is________.

5.The expression P(A or B) = P(A) + P(B) is valid if:

a) A and B are independent

b) A and B are dependent

c) A and B are mutually exclusive

6.The set of all possible outcomes of en experiment is called the ------.

a) samples space

b) replacement

c) without replacement

7.The sum of the probabilities that an event will and that is will not occur is equal to __________ .

8.If sampling is conducted ------------- then the sample space for the probability involving the second selection is one less than the first.

a) sample space

b) with replacement

c) without replacement

9.Probabilities are real number between________and_________, inclusive.

10.The theory of probability sometimes is called the mathematics of ______________

11.Two probability can be added when we are asked:

a) tan 'or' question and the events are independent

b) an 'or' question and the events are mutually exclusive

c) an 'and' question and the events are independent

d) an 'and' question and the events are mutually exclusive