Scatter Plots & Correlation Coefficients

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows a relationship between two sets of data, with one variable plotted along the x-axis and the other along the y-axis.

Front

What does a correlation coefficient of 1 indicate?

Back

A correlation coefficient of 1 indicates a strong positive correlation, meaning that as one variable increases, the other variable also increases.

Front

What does a correlation coefficient of -1 indicate?

Back

A correlation coefficient of -1 indicates a strong negative correlation, meaning that as one variable increases, the other variable decreases.

Front

What does a correlation coefficient of 0 indicate?

Back

A correlation coefficient of 0 indicates no correlation between the two variables, meaning there is no predictable relationship.

Front

What is the explanatory variable in a study?

Back

The explanatory variable is the variable that is manipulated or categorized to observe its effect on another variable.

Front

What is the response variable in a study?

Back

The response variable is the variable that is measured to see how it is affected by changes in the explanatory variable.

Front

What does a positive correlation indicate?

Back

A positive correlation indicates that both sets of data values increase together; as one variable increases, the other variable also tends to increase.

Front

What does a negative correlation indicate?

Back

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

Front

How can you visually assess the correlation between two variables?

Back

You can visually assess the correlation between two variables by examining a scatter plot, where the pattern of points indicates the type and strength of the correlation.

Front

What is the range of correlation coefficients?

Back

The range of correlation coefficients is from -1 to 1, where -1 indicates a perfect negative correlation, 0 indicates no correlation, and 1 indicates a perfect positive correlation.