#404 Scatter Plots

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 correlation in a scatter plot indicate?

Back

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

Front

What does a negative correlation in a scatter plot indicate?

Back

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

Front

What does no association mean in the context of a scatter plot?

Back

No association means that there is no discernible relationship between the two variables; changes in one variable do not predict changes in the other.

Front

How can you determine the correlation type from a scatter plot?

Back

You can determine the correlation type by observing the direction of the points: if they trend upwards, it's positive; if they trend downwards, it's negative; if they are scattered without a clear trend, it's no association.

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, helping to identify trends, correlations, and potential outliers.

Front

What is the significance of the slope in a scatter plot?

Back

The slope of the line of best fit in a scatter plot indicates the strength and direction of the relationship between the two variables.

Front

How do you interpret the y-axis in a scatter plot?

Back

The y-axis typically represents the dependent variable, which is the outcome being measured or predicted based on the independent variable on the x-axis.

Front

What is the x-axis in a scatter plot?

Back

The x-axis typically represents the independent variable, which is the variable that is manipulated or categorized to observe its effect on the dependent variable.

Front

What does it mean if a scatter plot shows a strong correlation?

Back

A strong correlation means that the points in the scatter plot are closely clustered around a line, indicating a reliable relationship between the two variables.