Josh Played Professional Football for a Number of Years, and During

question 43

Multiple Choice

Josh played professional football for a number of years, and during that time, he had numerous concussions. Following his retirement from football, Josh became depressed, had trouble controlling his temper, and made poor decisions that ended in the breakup of his marriage. Josh later committed suicide. An autopsy of Josh's brain revealed that he had clear signs of:

• A)Alzheimer disease.
• B)ischemia.
• C)chronic traumatic encephalopathy.
• D)diaschisis.

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Definitions:

Exponential Distribution

A probability distribution used to model the time between events in a Poisson process, describing events that occur continuously and independently.

Waiting Time

The duration of time a person or item spends waiting before a service begins or an event happens.

Degrees of Freedom

The quantity of distinct values or measures that can be attributed to a statistical distribution.

Area

A measure of the extent of a surface or a region, usually expressed in square units.