If Two Events a and B Are Complementary

question 117

Multiple Choice

If two events A and B are complementary,

• A)they must also be mutually exclusive.
• B)they must also be statistically independent.
• C)the probabilities of the two events must sum to one.
• D)both a and b are true.
• E)none of the above.

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Definitions:

Equilibrium

A state in which opposing forces or influences are balanced, often used in chemistry to describe reactions where reactants and products are formed at the same rate.

Products

Substances formed as a result of a chemical reaction, appearing on the right side of a chemical equation.

Reactants

Substances that undergo chemical changes in a reaction, transforming into products.

Equilibrium

A state in a chemical reaction where the rates of the forward reaction and reverse reaction are equal, leading to no net change in the concentration of reactants and products.