The Probability of Finding Life in Any Subsurface Ocean Beneath

question 14

Multiple Choice

The probability of finding life in any subsurface ocean beneath the surface of Ganymede is much lower than for Europa because

• A) its icy crust will be much thicker, making it much more difficult for nutrients to be transported from the surface
• B) it does not have a rock/water boundary at its ocean bottom
• C) there is less tidal heating
• D) of all of these

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Definitions:

Margin of Error

An expression of the amount of random sampling error in a survey's results, indicating a range within which the true population parameter is likely to lie.

Confidence Interval

A collection of values, derived from the analysis of sample data, that is expected to cover the value of an unknown population quality.

Standard Error

A measure of the accuracy with which a sample distribution represents a population by using the standard deviation of the sample.

Confidence Interval

A set of numbers, taken from sample-based statistics, that is probable to contain the estimated value of an unspecified population parameter.