A Statistics Professor Receives an Average of Five E-Mail Messages

question 52

Multiple Choice

A statistics professor receives an average of five e-mail messages per day from students. Assume the number of messages approximates a Poisson distribution. What is the probability that on a randomly selected day she will have five messages?

• A)0.0067
• B)0.8750
• C)0.1755
• D)1.0000

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Definitions:

Receptor Sites

Specific locations on cell membranes or within cells where chemical substances, like neurotransmitters or hormones, bind to trigger a physiological response.

Long-Term Potentiation

A boost in the potency of synaptic connections after stimulation with high frequencies at a chemical synapse, believed to be a process underlying learning and memory.

Neurons

Specialized cells in the nervous system that transmit information through electrical and chemical signals.

Stress Hormones

Chemicals released in the body in response to stress, such as cortisol and adrenaline, which prepare the body for a fight or flight response.