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 variable do not predict changes in the other.

Front

How can you predict values using a scatterplot?

Back

You can predict values by finding the trend in the scatterplot and estimating the value based on the observed data points.

Front

What is a linear relationship in a scatterplot?

Back

A linear relationship is when the data points in a scatterplot form a straight line, indicating a consistent rate of change between the two variables.

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

How do you identify outliers in a scatterplot?

Back

Outliers are points that fall far away from the general cluster of data points in a scatterplot, indicating they do not fit the overall trend.

Front

What is the x-axis in a scatterplot?

Back

The x-axis is the horizontal axis that typically represents the independent variable in a scatterplot.

Front

What is the y-axis in a scatterplot?

Back

The y-axis is the vertical axis that typically represents the dependent variable in a scatterplot.