What Is the Mean of X, Given the Exponential Probability $$f ( x ) = \frac { 1 } { 20 } e ^ { \frac { x } { 20 } } \text { for } x \geq 0 \text { ? }$$

question 24

Multiple Choice

What is the mean of x, given the exponential probability function $$f ( x ) = \frac { 1 } { 20 } e ^ { \frac { x } { 20 } } \text { for } x \geq 0 \text { ? }$$

• A)0.05
• B)20
• C)100
• D)2,000

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Definitions:

Memory Problem

Involves difficulties in recalling information, which can result from various factors such as aging, stress, or neurological disorders.

Neurotransmitter

Chemical substances that transmit signals across a synapse from one neuron to another 'target' neuron or to a muscle or gland cell.

Acetylcholine

A neurotransmitter in both the peripheral and central nervous system that plays a crucial role in muscle activation and influences various functions in the body, including arousal, attention, memory, and motivation.

Dopamine

A neurotransmitter in the brain that plays major roles in reward, motivation, and the regulation of mood and movement.