If Jan Sells 2,500 Glow Sticks on the Fourth of July

question 11

Multiple Choice

If Jan sells 2,500 glow sticks on the Fourth of July at $1.99 each, what will her total profit be if each stick cost her $.88?

• A) $2,757
• B) $3,000
• C) $2,775
• D) $20,757
• E) None of these

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Definitions:

Noticeable Difference

The smallest change in a stimulus that can be detected by the senses.

Minimum Change

The least alteration that can occur in a situation or in the value of a variable.

Absolute Threshold

The minimum intensity of a stimulus at which it can be detected by an individual at least 50% of the time.

Difference Threshold

The smallest detectable difference between two stimuli that a person is able to sense, also known as the just noticeable difference (JND).