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 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 correlation mean in a scatter plot?

Back

No correlation means there is no apparent relationship between the two variables; changes in one do not affect the other.

Front

What is the line of best fit in a scatter plot?

Back

The line of best fit is a straight line that best represents the data on a scatter plot, showing the trend of the data.

Front

How do you determine the slope of the line of best fit?

Back

The slope of the line of best fit is determined by the change in the y-values divided by the change in the x-values between two points on the line.

Front

What is the y-intercept in a scatter plot?

Back

The y-intercept is the point where the line of best fit crosses the y-axis, indicating the value of y when x is zero.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually represent the relationship between two variables and to identify patterns, trends, or correlations.

Front

What does it mean if the points on a scatter plot are tightly clustered around the line of best fit?

Back

If the points are tightly clustered around the line of best fit, it indicates a strong correlation between the two variables.

Front

What does it mean if the points on a scatter plot are widely scattered?

Back

If the points are widely scattered, it indicates a weak correlation or no correlation between the two variables.