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

---

Definitions:

Psychosexual Stages

A theory proposed by Freud describing how personality develops through five stages (oral, anal, phallic, latency, genital) centered on erogenous zones.

Phallic

Relating to or resembling the penis, often used in the context of Freudian psychoanalysis to describe a stage of human development.

Genital

Pertaining to the external and internal organs of reproduction in both males and females.

Defense Mechanism

Psychological strategies brought into play by individuals, groups, or even nations to cope with reality and to maintain self-image.