Venus Shows Changes in Angular Size and Also Shows Phases

question 209

Multiple Choice

Venus shows changes in angular size and also shows phases similar to the phases of the Moon. According to Galileo, who first saw the phases, these observations showed that Venus

• A) orbits Earth in an elliptical orbit.
• B) moves in epicycles.
• C) does not rotate on its axis.
• D) orbits the Sun.

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Definitions:

Regression Line

A line that best fits a set of data points in linear regression analysis, showing the general direction in which the data tend to go.

Prediction Interval

An estimate of the interval within which future observations will fall, with a certain probability, given what has already been observed.

One-Time Occurrence

An event or happening that takes place once and is not repeated.

API Gravity

A measure of how heavy or light a petroleum liquid is compared to water, used in the oil and gas industry to classify oils.