Scatter Plots

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional grid.

Front

What does the x-axis typically represent in a scatter plot?

Back

The x-axis usually represents the independent variable, which is the variable that is manipulated or changed.

Front

What does the y-axis typically represent in a scatter plot?

Back

The y-axis usually represents the dependent variable, which is the variable that is measured or observed.

Front

What is correlation in the context of scatter plots?

Back

Correlation refers to the strength and direction of a relationship between two variables, which can be positive, negative, or none.

Front

What does a positive correlation look like on a scatter plot?

Back

A positive correlation appears as a pattern where data points rise from left to right, indicating that as one variable increases, the other also increases.

Front

What does a negative correlation look like on a scatter plot?

Back

A negative correlation appears as a pattern where data points fall from left to right, indicating that as one variable increases, the other decreases.

Front

What does no correlation mean in a scatter plot?

Back

No correlation means there is no discernible pattern between the two variables, and the data points are scattered randomly.

Front

How can you identify the trend in a scatter plot?

Back

The trend can be identified by drawing a line of best fit that summarizes the direction of the data points.

Front

What is the purpose of a trend line in a scatter plot?

Back

A trend line helps to predict values and understand the relationship between the variables by showing the general direction of the data.

Front

What does it mean if a scatter plot shows a strong correlation?

Back

A strong correlation means that the data points are closely clustered around the trend line, indicating a reliable relationship between the variables.