In a Fish Tank, There Are 23 Goldfish, 4 Angelfish

question 23

Multiple Choice

In a fish tank, there are 23 goldfish, 4 angelfish, and 9 guppies. If a fish is selected at random, find the probability that it is an angelfish or a guppy.

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Definitions:

Negative Reinforcement

A type of operant conditioning that strengthens a behavior by removing an unpleasant stimulus when the behavior occurs.

Tertiary Reinforcement

A form of reinforcement where a stimulus gains its reinforcing power through association with a secondary reinforcer, rather than satisfying a basic biological need.

Secondary Reinforcement

A process where a stimulus reinforces a behavior because it is paired with a primary reinforcer.

Positive Reinforcement

A method in behavior modification that involves the addition of a rewarding stimulus following a desired behavior, encouraging its recurrence.