Reading Scatterplots & Predictions

Front

What is a scatterplot?

Back

A scatterplot is a type of graph that shows the relationship between two variables by displaying data points on a two-dimensional axis.

Front

How do you interpret a scatterplot?

Back

To interpret a scatterplot, look for patterns, trends, and correlations between the variables represented on the axes.

Front

What does a positive correlation in a scatterplot indicate?

Back

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

Front

What does a negative correlation in a scatterplot indicate?

Back

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

Front

What does no correlation in a scatterplot mean?

Back

No correlation means there is no apparent relationship between the two variables; the data points are scattered randomly.

Front

How can you make predictions using a scatterplot?

Back

You can make predictions by identifying trends in the data and estimating values based on the observed relationship.

Front

What is the purpose of using a trend line in a scatterplot?

Back

A trend line helps to summarize the relationship between the variables and can be used to make predictions.

Front

What is the independent variable in a scatterplot?

Back

The independent variable is the variable that is manipulated or changed, typically plotted on the x-axis.

Front

What is the dependent variable in a scatterplot?

Back

The dependent variable is the variable that is measured or observed, typically plotted on the y-axis.

Front

How do you determine the best fit line in a scatterplot?

Back

The best fit line is determined by minimizing the distance between the line and all the data points, often using linear regression.