Scatterplots

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 is an outlier in a scatterplot?

Back

An outlier is a data point that is significantly different from other observations, often lying far away from the main cluster of points.

Front

How can you identify a strong positive linear relationship in a scatterplot?

Back

A strong positive linear relationship is identified when the points closely follow a straight line that slopes upwards.

Front

How can you identify a weak positive linear relationship in a scatterplot?

Back

A weak positive linear relationship is identified when the points are scattered but still show a slight upward trend.

Front

What does no correlation mean in a scatterplot?

Back

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

Front

What are the coordinates of a point in a scatterplot?

Back

The coordinates of a point are given as (x, y), where 'x' is the value on the horizontal axis and 'y' is the value on the vertical axis.

Front

What is the purpose of a scatterplot?

Back

The purpose of a scatterplot is to visually represent the relationship between two variables and to identify patterns, trends, or outliers.

Front

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

Back

A cluster of points indicates that there is a concentration of data values in a specific area, suggesting a potential relationship between the variables.