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

Question

Quizplus · Accepted Answer

A geometric model is used for the number of trials until the first success in a series of independent Bernoulli trials. Option A fits this description as it involves counting the number of people checked until finding the first person with green eyes.

Which of These Random Variables Has a Geometric Model