scatterplots basics 1

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 plane.

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 mean in a scatterplot?

Back

No correlation means there is no apparent relationship between the two variables; changes in one do not predict changes in the other.

Front

How can you identify a linear relationship in a scatterplot?

Back

A linear relationship can be identified if the data points roughly form a straight line.

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

What type of scatterplot would you expect when graphing temperature vs. number of beach visitors?

Back

You would expect a positive correlation scatterplot, as higher temperatures generally lead to more beach visitors.

Front

What does it mean if a scatterplot has a cluster of points?

Back

A cluster of points indicates that there is a concentration of data points in that area, suggesting a common relationship.

Front

What is the purpose of using scatterplots in data analysis?

Back

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