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 axis.

Front

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

Back

A strong positive correlation indicates that as one variable increases, the other variable also tends to increase.

Front

What does a strong negative correlation indicate in a scatter plot?

Back

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

Front

What is an outlier in a scatter plot?

Back

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

Front

What is a cluster in a scatter plot?

Back

A cluster is a group of data points that are close together, indicating a concentration of values in a specific area.

Front

How do you identify the trend line in a scatter plot?

Back

The trend line is a straight line that best represents the data points in a scatter plot, showing the general direction of the data.

Front

What does a positive slope in a trend line indicate?

Back

A positive slope indicates that there is a positive correlation between the two variables, meaning they increase together.

Front

What does a negative slope in a trend line indicate?

Back

A negative slope indicates that there is a negative correlation between the two variables, meaning one variable increases while the other decreases.

Front

How can you estimate values using a trend line?

Back

You can estimate values by locating the desired x-value on the horizontal axis and then finding the corresponding y-value on the trend line.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually represent the relationship between two variables and to identify patterns, trends, or correlations.