Term 2 Finals part 1

Front

What is an explanatory variable?

Back

An explanatory variable is a variable that is manipulated or categorized to observe its effect on a response variable.

Front

What is a response variable?

Back

A response variable is the outcome or effect that is measured in an experiment or study, influenced by the explanatory variable.

Front

What is a scatterplot?

Back

A scatterplot is a graphical representation of two variables, showing the relationship between them using points on a Cartesian plane.

Front

What does it mean if a scatterplot is correct?

Back

A correct scatterplot accurately represents the relationship between the two variables, with appropriate axes and scales.

Front

What is the purpose of a two-way table?

Back

A two-way table displays the frequency distribution of two categorical variables, allowing for the analysis of their relationship.

Front

How do you determine the axes for a scatterplot?

Back

The independent variable is placed on the horizontal axis (x-axis), while the dependent variable is placed on the vertical axis (y-axis).

Front

What is the significance of starting the vertical axis at zero in a graph?

Back

Starting the vertical axis at zero provides a true representation of the data, avoiding misleading interpretations of the scale.

Front

What is the relationship between vehicle weight and fuel economy?

Back

Typically, as vehicle weight increases, fuel economy decreases, indicating a negative correlation.

Front

What is the importance of random selection in research?

Back

Random selection helps ensure that the sample is representative of the population, reducing bias and increasing the validity of the results.

Front

What is an example of an explanatory-response relationship?

Back

Explanatory: fuel remaining in gas tank. Response: distance that can be traveled.