If Two Equally Likely Events a and B Are Collectively

question 32

Multiple Choice

If two equally likely events A and B are collectively exhaustive, what is the probability that event A occurs?

• A) 0
• B) 1.00
• C) 0.50
• D) cannot be determined from the information given

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Definitions:

Chlorofluorocarbons

Man-made chemical compounds used historically in air conditioning, refrigeration, and aerosol propellants, known for their damaging effects on the ozone layer.

Carbon Tetrachloride

A colorless, heavy, volatile liquid used in various industrial applications, known for its environmental and health hazards.

Halons

Compounds used in fire extinguishers that contain bromine and chlorine, known for their ozone-depleting properties.

CFCs

Chlorofluorocarbons, a group of chemical compounds used in some aerosols, refrigerants, and foam blowing agents that can deplete the ozone layer.