Which of These Random Variables Has a Geometric Model

question 23

Multiple Choice

Which of these random variables has a geometric model?

• A) The number of Democrats among a group of 20 randomly chosen adults.
• B) The number of cars inspected until we find three with bad mufflers.
• C) The number of people we check until we find someone with green eyes.
• D) The number of aces among the top 10 cards in a well-shuffled deck.
• E) The number of cards of each suit in a 10-card hand.

---

Definitions:

Sir Francis Galton

A British polymath best known for his work in the fields of statistics, psychology, and eugenics, and for being a pioneer in the study of human intelligence and variation.

Alfred Binet

A French psychologist best known for his role in developing the first intelligence tests along with his colleague Théodore Simon.

Heredity

The passing of genetic traits from parents to offspring, determining certain characteristics of the individual.

Intelligence

The ability to learn from experience, adapt to new situations, understand and handle abstract concepts, and use knowledge to manipulate one's environment.