Add. -(9s + 15t) + (11t - 2s)

question 62

Multiple Choice

Add.
-(9s + 15t) + (11t - 2s)

• A) 11s + 26t
• B) 33st
• C) 20s + 13
• D) 7s + 26t

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Definitions:

Weber Fraction

A psychological principle that quantifies the perception of change in a given stimulus proportionate to the original intensity of the stimulus.

Just-Noticeable Difference

The smallest difference in stimulus intensity that a specific sense can detect.

Decision Criterion

The threshold or standard set by an individual or system to decide between alternatives.

Weber's Law

A principle in psychology that states the smallest change in a stimulus that can be detected is a constant proportion of the original stimulus's intensity.