Twelve Persons Are Arranged in a Line

question 18

Multiple Choice

Twelve persons are arranged in a line. What is the probability that three specific people are standing next to each other?

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Definitions:

Parental Stock

The breeding animals or plants used in agriculture or aquaculture, from which offspring are produced for specific qualities or production purposes.

Sympatric Speciation

The process where new species evolve from a single ancestral species while inhabiting the same geographic region.

Separate Identities

The concept of distinguishing or individualizing characteristics that make a person, group, or entity distinct from others.

Reproductive Isolation

A collection of mechanisms, behaviors, and physiological processes that prevent the members of two different species that cross or mate from producing offspring, or ensure any offspring are sterile.