The following table shows the relationship between the speed of a computer's CPU and its benefits and costs. Assume that all other features of the computer are the same (that is, CPU speed is the only source of variation) , and only the CPU speeds listed below are available for purchase. 
The marginal benefit of upgrading from a 2.0GHz computer to a 2.5GHz computer is:
Definitions:
Expectancy Theory
A motivational theory suggesting that an individual's motivation is based on their expected outcomes of their actions.
Perceptions
The process by which individuals organize and interpret their sensory impressions to give meaning to their environment or experiences.
Abilities
The natural or acquired skills and talents that individuals possess, which enable them to perform particular tasks.
Carpal Tunnel Syndrome
A medical condition caused by the compression of the median nerve as it passes through the wrist, often linked to repetitive motion or strain.
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