11/30 Scatter Plot Review

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 the line of best fit represent in a scatter plot?

Back

The line of best fit represents the trend of the data points in a scatter plot, indicating the general direction of the relationship between the variables.

Front

What is correlation in the context of scatter plots?

Back

Correlation refers to the strength and direction of a relationship between two variables, which can be positive, negative, or none.

Front

What does a strong positive correlation indicate?

Back

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

Front

What does a weak negative correlation indicate?

Back

A weak negative correlation indicates that as one variable increases, the other variable tends to decrease, but the relationship is not strong.

Front

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

Back

A linear relationship can be identified if the data points roughly form a straight line, either increasing or decreasing.

Front

What is the purpose of analyzing a scatter plot?

Back

The purpose of analyzing a scatter plot is to understand the relationship between two variables and to identify trends, patterns, or correlations.

Front

What does it mean if a scatter plot has no correlation?

Back

If a scatter plot has no correlation, it means there is no discernible relationship between the two variables; the data points are scattered randomly.

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 calculating the change in the y-values divided by the change in the x-values between two points on the line.

Front

What is the significance of outliers in a scatter plot?

Back

Outliers are data points that fall far from the trend of the rest of the data; they can significantly affect the line of best fit and the overall analysis.