The Mass and Radius of the Planet Venus Are 81

question 69

Multiple Choice

The mass and radius of the planet Venus are 81% and 95% that of Earth,respectively.How much faster or slower (as a percentage) is the escape velocity from Venus compared to that of Earth?

• A)8% slower
• B)8% faster
• C)12% slower
• D)12% faster
• E)17% slower

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Definitions:

Expected Frequencies

The predicted counts of occurrences across different categories that one would expect if a hypothesis were true.

Chi-square Statistic

A measure used in statistics to evaluate the differences between observed and expected frequencies in categorical variables.

Expected Frequencies

In statistics, the numbers of observations or outcomes that one would expect to occur in each category if the null hypothesis were true.

Nonparametric Tests

Statistical tests not relying on data belonging to any particular distribution; often used when data does not meet the assumptions of parametric tests.