How Many Permutations of the Two Letters C and D

question 46

Multiple Choice

How many permutations of the two letters C and D are possible?

• A)1
• B)0
• C)4
• D)8

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Definitions:

Feature Detectors

Nerve cells in the brain that respond to specific features of a stimulus, such as shape, angle, or movement.

Absolute Threshold

The minimum stimulus intensity required to detect a particular stimulus 50% of the time.

Adaptation Threshold

The limit to which an organism or a system can adapt to changes in conditions or stimuli.

Difference Threshold

The smallest amount of change in a stimulus that can be detected as different from the original stimulus.