Scatter Plots Basics
What is a scatter plot?
Answers may include:
A graph, comparing two variables, points scattered on a graph, etc.
In a scatter plot depicting exercise time vs. calories burned, what type of graphs is this?
Positive Correlation
Using the line of best fit on a scatter plot, you can predict this about data sets.
What is future values or outcomes?
The line that best fits the data points on a scatter plot is called this.
What is the line of best fit?
A scatter plot showing the relationship between miles driven and how much gas is left in the tank has what kind of correlation?
Negative
In a scatter plot with a positive trend, as one variable increases, this happens to the other variable.
What is it also increases?
When one variable increases as the other variable increases, the scatter plot shows this type of correlation.
What is a positive correlation?
A scatter plot with points that have no discernible upward or downward trend is described this way.
No correlation
In a negative correlation scatter plot, as one variable increases, this happens to the other variable.
What is it decreases?