Why Is Europa Considered a Good Candidate for the Possible

question 102

Multiple Choice

Why is Europa considered a good candidate for the possible existence of life?

• A)Strong evidence suggests that it has a deep,subsurface ocean of liquid water.
• B)The Galileo spacecraft found strange seasonal changes on its surface that look like they could be due to life.
• C)It is located within our Sun's habitable zone.
• D)It has a thick atmosphere with a surface pressure greater than that on Earth.

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Definitions:

Hypothesis Test

A methodology in statistics used to determine whether a statement about a population parameter is likely true, based on sample data.

P-value

In statistical hypothesis testing, the probability of obtaining test results at least as extreme as the observed results, assuming that the null hypothesis is correct.

Unemployment Rate

The unemployment rate is a measure of the percentage of the labor force that is jobless and actively looking for employment.

Natural Sampling Variation

The variability observed in sample data, which arises naturally due to random selection from a population.