Scatterplots

Front

What is a scatterplot?

Back

A scatterplot is a graph that displays values for typically two variables for a set of data. Each point represents an observation in the dataset.

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 strong correlation in a scatterplot?

Back

A strong correlation is indicated by points that are closely clustered around a straight line, either positively or negatively.

Front

What is the purpose of using scatterplots?

Back

Scatterplots are used to visually assess the relationship between two quantitative variables.

Front

What does it mean if a scatterplot shows a weak correlation?

Back

A weak correlation means that the points are more spread out and do not closely follow a straight line.

Front

How do you interpret the slope of a line in a scatterplot?

Back

The slope indicates the direction and steepness of the relationship between the two variables.

Front

What is the significance of outliers in a scatterplot?

Back

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

Front

What is the first step in creating a scatterplot?

Back

The first step is to collect and organize the data for the two variables you want to compare.