Scatterplots 1-27

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 negative association in a scatterplot indicate?

Back

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

Front

What type of correlation is indicated when there is no discernible pattern in a scatterplot?

Back

No correlation or association.

Front

How can you determine the approximate value of one variable based on another in a scatterplot?

Back

By locating the point on the scatterplot that corresponds to the given value of one variable and reading the value of the other variable from that point.

Front

What does it mean if a scatterplot shows a strong positive correlation?

Back

It means that as one variable increases, the other variable also tends to increase, and the points are closely clustered around a line.

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 significance of outliers in a scatterplot?

Back

Outliers are points that fall far away from the general trend of the data and can significantly affect the correlation and interpretation of the data.

Front

How can you interpret a scatterplot with no clear trend?

Back

A scatterplot with no clear trend suggests that there is no relationship between the two variables being analyzed.

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation implies that one variable directly affects the other.

Front

What does a scatterplot with a perfect positive correlation look like?

Back

A scatterplot with a perfect positive correlation shows all points lying exactly on a straight line with a positive slope.