A Swimmer Heading Directly Across a River 200 M Wide

question 43

Multiple Choice

A swimmer heading directly across a river 200 m wide reaches the opposite bank in 6 min 40 s. She is swept downstream 480 m. What is the speed of the current?

• A) 0.50 m/s
• B) 0.80 m/s
• C) 1.2 m/s
• D) 1.4 m/s
• E) 1.8 m/s

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Definitions:

Degrees of Freedom

Represents the number of independent values or quantities that can vary in an analysis without violating any constraints.

Number of Levels

Refers to the different categories or values that an independent variable can take in an experiment or study.

Main Effect

The impact of a single independent variable on a dependent variable in an experimental design.

Factor B

In experimental designs, it refers to the second independent variable being studied for its effect on the dependent variable.