Solve the Problem $\mathrm { P } ( \mathrm { t } )$

question 118

Multiple Choice

Solve the problem.
-A certain country's population $\mathrm { P } ( \mathrm { t } )$ , in millions, t years after 1980 can be approximated by $\mathrm { P } ( \mathrm { t } ) = 2.495 ( 1.018 ) ^ { \mathrm { t } } \text {. }$ Find the doubling time. Round your answer to the nearest tenth.

• A) \(61.6 \mathrm { yr }\)
• B) \(38.9 \mathrm { yr }\)
• C) \(77.7 \mathrm { yr }\)
• D) \(51.2 \mathrm { yr }\)

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Definitions:

White Rat

Typically used in psychological experimentation, a white rat is an albino variant of the common rat, chosen for its visibility and standardized conditions.

Little Albert

A landmark experiment in psychology conducted by John B. Watson which demonstrated that emotional reactions could be classically conditioned in humans.

Vicarious Conditioning

Learning that occurs by observing the reactions of others to an environment, rather than through direct experience or participation.

Emotional Responses

The reactions, both physiological and psychological, of an individual to external or internal stimuli.