Some examples of correlation coefficients are the relationships between deer hunters and deer in a region, the correlation between the distance a golf ball travels and the amount of force striking it and the relationship between a Fahrenheit and a Celsius temperature value. Correlation coefficients are measured within the range of -1 and 1. A stronger absolute value indicates a stronger linear relationship between the two variables.
Continue ReadingA correlation coefficient that is equal to 0 demonstrates the weakest possible linear relationship between the components being examined. A value of either -1 or 1 represents the strongest possible correlation.
The correlation is negative if one variable decreases as the other grows. This could be exemplified by the deer and deer hunter relationship. The number of deer will most likely decrease as the number of deer hunters increases. In the case of the Fahrenheit and Celsius temperature relationship, the correlation will always be positive because as one variable increases, so does the other.
Learn more about Data GraphsA scatter plot is a mathematical diagram showing the relationship between two sets of data. Individual points are positioned according to the variables assigned to the vertical and horizontal axis.
Full Answer >An entity relationship diagram or model describes how sets of entities, such as computer processes or organizational roles, interact with each other. An ER model can also list attributes for a particular entity. The most common shape for an entity is a rectangle, while interactions or actions are diamonds, and attributes are ovals. The three main types of ER diagrams are physical data, logical data and conceptual data models.
Full Answer >A line graph is a graph that charts the relationship between two variables or a progression of a single quantity through time. Without the lines connecting points of data, it would be difficult to make sense of the data being presented if there was no overall trend between the dots. A bar graph, on the other hand, is meant to compare two or more statistics, such as population figures.
Full Answer >A direct relationship graph is a graph where one variable either increases or decreases along with the other. The general equation for a direct relationship graph is y = mx + b, where "y" denotes the dependent variable, "x" indicates the independent variable, "m" represents the slope of the line and "b" is the y-intercept.
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