Scatterplots

Front

What is a scatterplot?

Back

A scatterplot is a graphical representation of two variables, showing the relationship between them using points on a Cartesian plane.

Front

What does a positive linear association in a scatterplot indicate?

Back

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

Front

What does a negative linear association in a scatterplot indicate?

Back

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

Front

What does no apparent association in a scatterplot mean?

Back

No apparent association means that there is no clear relationship between the two variables being plotted.

Front

How can you predict values using a scatterplot?

Back

You can predict values by finding the trend line or pattern in the scatterplot and using it to estimate the value of one variable based on the other.

Front

What is the purpose of using scatterplots in data analysis?

Back

Scatterplots are used to visually assess the relationship between two quantitative variables and to identify trends, patterns, or correlations.

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 interpret the slope of a trend line in a scatterplot?

Back

The slope of a trend line indicates the rate of change between the two variables; a steeper slope means a stronger relationship.

Front

What is the significance of outliers in a scatterplot?

Back

Outliers are data points that fall far from the trend line and can indicate anomalies or errors in data collection.