If a Set of Values Exhibits a Poisson Distribution with a Mean

question 19

True/False

If a set of values exhibits a Poisson distribution with a mean value of 1, then the probability of observing no successes in a given period is equal to 0.368. (Note: The value of e = 2.718.)

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Definitions:

Patch Test

An allergy test in which a gauze patch soaked with a suspected allergen is taped onto the skin with nonallergenic tape; used to discover the cause of contact dermatitis.

Suspected Allergen

A substance believed to cause an allergic reaction but has not yet been medically confirmed as an allergen for an individual.

Linen

A fabric made from the fibers of the flax plant, known for its strength, smoothness, and coolness to the touch.

Sebaceous Glands

Small oil-producing glands in the skin that secrete sebum into hair follicles to lubricate the skin and hair.