Trend Lines and Scatter Plots

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship of two data sets.

Front

If a scatterplot has no correlation, what does that mean?

Back

It means its ordered pairs have no predictable pattern.

Front

What does positive correlation indicate in a scatter plot?

Back

Positive correlation indicates that as one variable increases, the other variable also increases.

Front

What does negative correlation indicate in a scatter plot?

Back

Negative correlation indicates that as one variable increases, the other variable decreases.

Front

What is the correlation coefficient?

Back

The correlation coefficient is a numerical measure of the strength and direction of a relationship between two variables.

Front

What is causation?

Back

Causation indicates that one event is the result of the occurrence of another event.

Front

What is the purpose of trend lines in scatter plots?

Back

Trend lines are used to show the general direction or pattern of the data points in a scatter plot.

Front

How can you determine if there is a correlation in a scatter plot?

Back

You can determine correlation by observing the pattern of the data points; if they form a line or curve, there is a correlation.

Front

What does it mean if a scatter plot shows no correlation?

Back

It means that there is no discernible pattern or relationship between the two variables.

Front

What is an example of a situation with no correlation?

Back

The number of siblings you have and your weight is an example of no correlation.