Which of the Following Quantities Has Units of a Velocity

question 23

Multiple Choice

Which of the following quantities has units of a velocity? (There could be more than one correct choice. )

• A)40 km southwest
• B)-120 m/s
• C)9.8 m/s² downward
• D)186,000 mi
• E)9.8 m/s downward

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Definitions:

Correlation Coefficient

A numerical measure that indicates the extent to which two variables fluctuate together. A value closer to 1 or -1 indicates a strong relationship.

Best Fitting Line

A line drawn through a scatterplot of data points that best expresses the relationship between those points.

Covariance

A measure that indicates the degree to which two variables change together. If the variables tend to show similar behavior, the covariance is positive; if they show opposite behavior, the covariance is negative.

Standard Deviation

A system for measuring the degree of difference or spread in a set of figures.