![]() Data collected from the previous seven years is displayed. A police department wants to see if there is a relationship between the number of robberies and the number of vandalism crimes in town. Then, compute the value of the correlation coefficient. Verify your scatter plot with a graphing calculator and determine if the data has a positive correlation, negative correlation, or no correlation. An environmentalist wants to determine the relationships between the number of forest fires in thousands) over the year and the number of acres burned (in hundred thousands). ![]() A relationship in which only two variables are under study.Ĭonstruct a scatter plot for the following data. A relationship in which many variables are under study. A graph of the independent and dependent variables in regression and correlation analysis. A statistical method used to determine whether a linear relationship exists between two variables. A relationship between two variables such that as one variable increase, the other variable increases. A variable in correlation and regression analysis that can be controlled or manipulated. ![]() (Positive/Negative or Linear/Nonlinear Relationship) Down 1. A statistical method used to describe the nature of the relationship between variables. Measures the strength and direction of a linear relationship between two variables. A relationship between variables such that as one variable increases, the other variable decreases. A variable in correlation and regression analysis that cannot be controlled or manipulated. Elementary Statistics - Scatter Plots and Correlation Worksheet Complete the following crossword puzzle using vocabulary words from the lesson.Īcross 3.
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