If the Average Number of Customers Served Per Hour Is

question 34

Multiple Choice

If the average number of customers served per hour is four,then the probability that the service exceeds 15 minutes for any customer is ______.

• A)74.1%
• B)54.9%
• C)36.8%
• D)17.4%

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Definitions:

Marsupial

A class of mammals, primarily found in Australia and the Americas, characterized by giving birth to relatively undeveloped offspring that typically complete their development in a pouch.

Echinoderms

A phylum of marine animals including sea stars, sea urchins, and sand dollars, known for their radial symmetry and a water vascular system.

Chordates

Animals that at some stage of development have a notochord, a dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail, comprising all vertebrates and several closely related invertebrates.

Exoskeleton

A rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection.