From a Group of 12 Students,we Want to Select a Random

question 128

Multiple Choice

From a group of 12 students,we want to select a random sample of 4 students to serve on a university committee.How many different random samples of 4 students can be selected?

• A)48
• B)20,736
• C)16
• D)495

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Definitions:

Cocktail Party Effect

The ability to focus one's listening attention on a single talker among a mixture of conversations and background noises.

Selective Attention

The cognitive process by which an individual focuses on one particular object or message among a range of stimuli, ignoring others.

Inattentional Blindness

The psychological phenomenon where an individual fails to perceive an unexpected stimulus in plain sight because their attention is engaged elsewhere.

Blindsight

A condition in which a person can respond to visual stimuli without consciously perceiving them, often due to damage in the visual cortex.