Where Has Water Been Detected on Mars

question 212

Multiple Choice

Where has water been detected on Mars?

• A) as a liquid flowing along the numerous flood valleys and meandering stream beds
• B) only as atmospheric water vapor, never condensing out as clouds, liquid water, or solid ice
• C) in permafrost and polar icecaps and as water vapor in the atmosphere
• D) as a liquid in under-surface lakes and rivers

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Definitions:

Random Variable

A variable that can take on numerical results as outcomes of a random event.

Poisson Probability Distribution

A statistical distribution that expresses the probability of a given number of events occurring in a fixed interval of time or space.

Continuous Probability

Describes the likelihood of outcomes in situations where the range of possible values is an interval, allowing for any value within the range.

Discrete Random Variable

A variable that takes on a countable number of distinct values, often representing outcomes of a random process.