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 positive association in a scatter plot indicate?

Back

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

Front

What does a negative association in a scatter plot indicate?

Back

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

Front

What does 'no correlation' mean in the context of scatter plots?

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

What is a trend line in a scatter plot?

Back

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

Front

How can you use a scatter plot to make predictions?

Back

You can use a scatter plot and its trend line to estimate the value of one variable based on the value of another variable.

Front

What is the purpose of analyzing scatter plots?

Back

Analyzing scatter plots helps to identify relationships, trends, and patterns between two variables.

Front

What is the difference between linear and nonlinear associations in scatter plots?

Back

Linear associations show a straight-line relationship, while nonlinear associations show a curved relationship between the variables.

Front

What does it mean if a scatter plot has 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.

Front

What does it mean if a scatter plot has a weak correlation?

Back

A weak correlation means that the data points are more spread out from the trend line, indicating a less reliable relationship between the variables.