Sixty Percent of the Customers of a Fast Food Chain

question 77

Multiple Choice

Sixty percent of the customers of a fast food chain order a hamburger, french fries and a drink. If a random sample of 15 cash register receipts is selected, what is the probability that 10 or more will show that the above three food items were ordered?

• A) 1.000
• B) 0.7827
• C) 0.9095
• D) 0.2173
• E) 0.0905

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Definitions:

Soft Palate

The flexible, muscular part at the back of the roof of the mouth, which closes off the nasal passages during swallowing.

Hard Palate

Floor of the nasal cavity that separates the nasal cavity from the oral cavity; composed of the palatine processes of the maxillary bones and the horizontal plates of the palatine bones; also called bony palate.

Bolus

A term used to describe a mass of substance, especially chewed food at the moment of swallowing.

Pharyngeal Constriction

The process of tightening the pharyngeal muscles to assist in swallowing, crucial for moving food from the mouth to the esophagus.