Scatter Plots

Front

What is a scatter plot?

Back

A scatter plot is a type of graph that uses dots to represent the values obtained for two different variables - one plotted along the x-axis and the other plotted along the y-axis.

Front

What does a positive correlation in a scatter plot 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 scatter plot indicate?

Back

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

Front

What does it mean if a scatter plot shows no correlation?

Back

If a scatter plot shows no correlation, the points are scattered randomly and do not show any discernible pattern or relationship.

Front

How can you determine the strength of a correlation in a scatter plot?

Back

The strength of a correlation can be determined by how closely the points cluster around a line. A tighter cluster indicates a stronger correlation.

Front

What is the purpose of using scatter plots in data analysis?

Back

Scatter plots are used to visually assess the relationship between two quantitative variables and to identify trends, patterns, or outliers.

Front

What is the x-axis in a scatter plot?

Back

The x-axis is the horizontal axis in a scatter plot, typically representing the independent variable.

Front

What is the y-axis in a scatter plot?

Back

The y-axis is the vertical axis in a scatter plot, typically representing the dependent variable.

Front

What does it mean if the points in a scatter plot form a straight line?

Back

If the points in a scatter plot form a straight line, it indicates a perfect linear relationship between the two variables.

Front

What is the significance of outliers in a scatter plot?

Back

Outliers are data points that fall far away from the other points in the scatter plot and can indicate variability in the data or errors in measurement.