The Lifetime of a Stereo Component Is Exponentially Distributed with Mean

question 141

Multiple Choice

The lifetime of a stereo component is exponentially distributed with mean 1,000 days. What is the probability that the lifetime of the stereo component exceeds 1,000 days?

• A) .6321
• B) .5000
• C) .3679
• D) 1.000

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Definitions:

Synapse

The junction between two nerve cells, consisting of a minute gap across which impulses pass by diffusion of a neurotransmitter.

Nerve Impulse

A signal transmitted along a nerve fiber, consisting of a wave of electrical depolarization that reverses the electric potential along the membrane of the nerve cell.

Neighboring Neuron

A neuron that is located adjacent to another neuron, facilitating neural communication.

Split-Brain

A condition resulting from surgery that involves severing the corpus callosum to treat severe epilepsy, leading to separate consciousnesses in the two hemispheres of the brain.