What Is the Simplest Way We Might Detect Life on an Extrasolar

question 63

Multiple Choice

What is the simplest way we might detect life on an extrasolar planet?

• A) listen for radio signals coming from an advanced civilization on the planet
• B) wait for aliens from the planet to visit us
• C) analyze the spectrum of reflected light from the planet
• D) send an interstellar probe to the planetary system

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Definitions:

Probability

An indicator of the probability that a particular event will take place, represented by a numerical value ranging from 0 to 1, with 0 meaning the event cannot happen and 1 meaning the event is certain to happen.

Population

Every individual or item under consideration in a statistical evaluation.

Probability Distribution

A mathematical function that provides the probabilities of occurrence of different possible outcomes in an experiment.

Sample Proportion

The fraction of the sample that shares a particular trait or characteristic.