Probability and the Addition Rule

What is the General Addition Rule used for?

• To compute probabilities of mutually exclusive events

• To compute probabilities of events in the form A or B

• To compute probabilities of independent events

• To compute probabilities of dependent events.

Tags

CCSS.HSS.CP.B.7

In the context of the General Addition Rule, a compound event is of the form ________.

• A) A and B

• B) A or B

• C) A but not B

• D) Neither A nor B.

Tags

CCSS.HSS.CP.B.7

Based on the table, what is the probability that a randomly selected adult is likely to vote or favors the law?

• 0.872

• 0.726

• 0.512

• 0.845

Tags

CCSS.HSS.CP.B.7

What is the probability that a randomly selected worker is a college graduate?

• 0.4523

• 0.3422

• 0.4322

• 0.5000

Tags

CCSS.8.SP.A.4

In the table, what is the probability that the occupation of a randomly selected worker is categorized either as Sales and office or as Production and transportation?

• 0.4631

• 0.3461

• 0.3614

• 0.6341

Tags

CCSS.HSS.CP.B.7

What does it mean for two events to be mutually exclusive?

• They cannot occur at the same time.

• They must occur together.

• They are independent.

• They are dependent.

Tags

CCSS.HSS.CP.A.5

Fill in the blank: Two events are said to be mutually exclusive if it is ________________ for both events to occur.

• impossible

• possible

• necessary

• optional

A die is rolled. Event A is that the die comes up 3, and event B is that the die comes up an even number. Are these events mutually exclusive?

• Yes

• No

Tags

CCSS.HSS.CP.A.1

According to the Addition Rule for Mutually Exclusive Events, if events A and B are mutually exclusive, what is P(A and B)?

• A) 1

• B) 0

• C) 0.5

• D) 2

Tags

CCSS.HSS.CP.B.7

A total of 11,544 athletes competed in the Olympics. If 554 represented the United States, 314 represented Canada, and 125 represented Mexico, what is the probability that an Olympic athlete chosen at random represents the U.S. or Canada?

• 0.075

• 0.0752

• 0.076

• 0.0762

Tags

CCSS.HSS.CP.B.7