Scatter Plot

Front

What is a scatter plot?

Back

A scatter plot is a graphical representation of two variables, where each point represents an observation in the dataset, showing the relationship between the variables.

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

How can you identify a positive relationship in a scatter plot?

Back

A positive relationship can be identified when the points on the scatter plot trend upwards from left to right.

Front

How can you identify a negative relationship in a scatter plot?

Back

A negative relationship can be identified when the points on the scatter plot trend downwards from left to right.

Front

What does it mean if there is no apparent association in a scatter plot?

Back

It means that there is no clear pattern or trend between the two variables being plotted.

Front

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

Back

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

Front

What is the significance of the correlation coefficient in relation to scatter plots?

Back

The correlation coefficient quantifies the strength and direction of the relationship between two variables, with values ranging from -1 to 1.

Front

What does a correlation coefficient of 0 indicate?

Back

A correlation coefficient of 0 indicates no linear relationship between the two variables.

Front

What are outliers in a scatter plot?

Back

Outliers are data points that fall far away from the general trend of the other points in the scatter plot, potentially indicating anomalies.