Scatterplots Review Day 2

Front

What is a scatterplot?

Back

A scatterplot 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 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 is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatterplot, showing the general direction of the data points.

Front

How can you determine the strength of a correlation from a scatterplot?

Back

The strength of a correlation can be determined by how closely the data points cluster around the line of best fit; tighter clusters indicate a stronger correlation.

Front

What does it mean if a scatterplot shows no correlation?

Back

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

Front

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

Back

A trend line helps to visualize the overall direction of the data and can be used to make predictions about one variable based on the other.

Front

How can you use a scatterplot to make predictions?

Back

You can use a scatterplot and the line of best fit to estimate the value of one variable based on the value of another variable.

Front

What is the significance of outliers in a scatterplot?

Back

Outliers are data points that fall far away from the other points and can significantly affect the line of best fit and the overall analysis.

Front

What does a scatterplot with a curved trend suggest?

Back

A curved trend suggests a non-linear relationship between the two variables, indicating that the relationship may change at different levels of the variables.