When We Analyze Whether a World Is a Possible Home

question 44

Multiple Choice

When we analyze whether a world is a possible home to life, the key thing we look for is .

• A)the presence of organic molecules such as amino acids
• B)the past or present existence of liquid water
• C)surface coloration changes that could indicate vegetative growth
• D)evidence of atmospheric oxygen

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Definitions:

Test Statistic

A value calculated from sample data during a hypothesis test. It's used to assess the evidence against the null hypothesis.

Chi-squared Distributed

Refers to a statistical distribution that is used to assess the goodness-of-fit of observed data with theoretical expectations under the null hypothesis.

Normal Distribution

A bell-shaped distribution curve which is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Variance

A measure of the dispersion indicating how far individual numbers are from the mean.