Scatter Plots and Associations Test Review

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

Front

What does a positive correlation indicate in a scatter plot?

Back

A positive correlation indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative correlation indicate in a scatter plot?

Back

A negative correlation indicates that as one variable increases, the other variable tends to decrease.

Front

What does 'no association' mean in the context of scatter plots?

Back

'No association' means that there is no discernible relationship between the two variables being plotted.

Front

What is an outlier in a scatter plot?

Back

An outlier is a data point that differs significantly from other observations in the dataset, potentially affecting the correlation.

Front

How can you identify a positive association in a scatter plot?

Back

A positive association can be identified when the data points trend upwards from left to right.

Front

How can you identify a negative association in a scatter plot?

Back

A negative association can be identified when the data points trend downwards from left to right.

Front

What is the slope of a line in a scatter plot?

Back

The slope of a line in a scatter plot indicates the direction and steepness of the relationship between the two variables.

Front

What does a slope of zero indicate in a scatter plot?

Back

A slope of zero indicates that there is no change in the dependent variable as the independent variable changes, suggesting no association.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually assess the relationship between two variables and to identify patterns, trends, or correlations.