Johannes Kepler

question 55

Multiple Choice

Johannes Kepler

• A) developed a theory of gravity to explain the motions of the planets
• B) obtained the first observational evidence suggesting the Earth moved about the Sun
• C) made detailed measurements of the motions of the planets in the sky
• D) showed that the orbits of the planets were ellipses and not circles

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Definitions:

Marginal Mean

The average value of a variable across levels of another variable, often used in the context of multivariate data analysis.

Marginal Means

The mean scores for each level of a factor averaged over the levels of other factors in a multifactorial experiment, often used in the analysis of variance.

Significant Main Effect

An outcome in statistical analysis indicating that the independent variable has a statistically meaningful impact on the dependent variable.

Variable

Property or characteristic of an object, event, or person that can take on different values.