BMGT 230 Chapter Notes - Chapter 6: Scatter Plot, Dependent And Independent Variables, Standard Deviation

• School: University of Maryland
• Department: Business and Management
• Course: BMGT 230
• Professor: Lazar

Document Summary

6. 1 scatterplot- ideal way to picture associations between two quantitative variables. Positive- as one variable increases, so does the other. High values of one variable tend to occur together with high values of the other variable. Pattern runs from the lower left to the upper right. Negative- as one variable increases, the other decreases. High values of one variable tend to occur together with low values of the other variable. Pattern runs from the upper left to the lower right. No direction/relationship- x and y vary independently. Cloud or swarm of points stretched out in a generally linear form. No pattern the main form if you know x values. Strength- can be seen by how much variation, or scatter, there is around. With a strong relationship, you can get a pretty good estimate of y. With a weak relationship, for any x you might get a wide range of y. How closely the points fit the form .