Scatter Plot & Association

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 it mean if a scatter plot shows no association?

Back

It means there is no discernible relationship between the two variables; changes in one variable do not affect the other.

Front

What is an outlier in a scatter plot?

Back

An outlier is a data point that differs significantly from other observations in the dataset, often appearing far away from the trend of the data.

Front

How can you identify a linear association in a scatter plot?

Back

A linear association can be identified if the data points roughly form a straight line, either sloping upwards (positive) or downwards (negative).

Front

What is a nonlinear association?

Back

A nonlinear association occurs when the relationship between the variables cannot be accurately represented by a straight line.

Front

What does it mean if a scatter plot has a strong association?

Back

A strong association means that the data points are closely clustered around a line or curve, indicating a clear relationship between the variables.

Front

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

Back

A weak association means that the data points are more spread out and do not closely follow a line or curve, indicating a less clear relationship.

Front

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

Back

Scatter plots are used to visually assess the relationship between two variables, helping to identify trends, correlations, and potential outliers.