If Events a and B Are Mutually Exclusive, How Do

question 66

Multiple Choice

If events A and B are mutually exclusive, how do we calculate the probability of their disjunction?

• A)Subtract the probability of A from the probability of B.
• B)Add the probability of A to the probability of B.
• C)Add the probability of A to the probability of B and then subtract the probability of A and B both occurring.
• D)Multiply the probability of A by the probability of B.
• E)Divide the probability of A by the probability of B.

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Definitions:

Myringotomy

A surgical procedure to make a tiny cut in the eardrum to relieve pressure caused by excessive fluid accumulation or to insert a tympanostomy tube.

Myringoplasty

A surgical procedure to repair a perforation of the tympanic membrane in the ear to restore hearing and prevent infections.

Eustachian Tube

A canal that connects the middle ear to the nasopharynx, helping to equalize air pressure on both sides of the eardrum.

Oval Window

A membrane-covered opening that leads from the middle ear to the vestibule of the inner ear.