Scatter Plot Vocabulary

Front

What is a system of equations that have the same slope and the same y-intercept?

Back

They create the same line, therefore they will share all of the same solutions, resulting in infinite solutions.

Front

What type of data involves two variables?

Back

Bivariate data.

Front

What is an outlier in a data set?

Back

A value much greater or much lesser than the others in the data set.

Front

What is the line on a scatter plot that helps show the correlation between data sets more clearly?

Back

Trend line.

Front

What is a graph with points plotted to show a possible relationship between two sets of data?

Back

Scatter plot.

Front

What does a positive correlation in a scatter plot indicate?

Back

As one variable increases, the other variable also increases.

Front

What does a negative correlation in a scatter plot indicate?

Back

As one variable increases, the other variable decreases.

Front

What is the purpose of a trend line in a scatter plot?

Back

To show the general direction of the data points and the correlation between the variables.

Front

What does the slope of a trend line represent?

Back

The rate of change between the two variables.

Front

What is the y-intercept in a linear equation?

Back

The point where the line crosses the y-axis.