CH 4-2 Addition Rule and Multiplication Rule

Question 1

What rule is used to find P(A or B)?

Answer 1

Addition rule

Question 2

What rule is used to find P(A and B)?

Answer 2

Multiplication rule

Question 3

What term describes any event combining tow or more simple events?

Answer 3

compound event

Question 4

What is the formula for the addition rule?

Answer 4

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

Question 5

What is used to find the probability that either event A occurs or event B occurs as the single outcome of a procedure?

Answer 5

Addition rule

Question 6

What is used to find the probability that event A and event B occurs?

Answer 6

Multiplication rule

Question 7

What term describes when events A and B cannot occur at the same time?

Answer 7

disjoint or mutually exclusive

Question 8

What is the formula for the Multiplication rule?

Answer 8

Question 9

Two events A and B are ________ if the occurrences of one does not affect the probability of the other.

Answer 9

Independent

Question 10

If A and B are not independent, they are said to be: __________

Answer 10

dependent

Question 11

Sampling with replacements: Selections are _________ events

Answer 11

Independent

Question 12

Sampling without replacement: Selections are _________ events

Answer 12

dependent

Question 13

When can you treat dependent events as independent?

Answer 13

When sampling wihtout replacement and the sample size is no more than 5% of the size of the population