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A relationship between two variables or sets of data is called what?
Wiki User
∙ 12y ago
Some people will give the answer "correlation". But that is not correct for the following reason:
Consider the coordinates of a circle. There is obviously a very strong relationship between the x coordinate and the y coordinate. The correlation between the two is not just small, but 0.
The correlation between two variables is a measure of the linear relationship between them. But there can be non-linear relationships which will not necessarily be reflected by any correlation.
Wiki User
∙ 12y ago
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Explain why bar graphs are useful for comparing data?
so you know the relationship between the 2 variables
A relationship between two variables or sets of data is called?
Correlation * * * * * That is simply not true. Consider the coordinates of a circle. There is obviously a very strong relationship between the x coordinate and the y coordinate. But the correlation is not just small, but 0. The correlation between two variables is a measure of the linear relationship between them. But there can be non-linear relationships which will not necessarily be reflected by any correlation.
Which of the following would let you show a relationship between two variables where each piece of data is connected to all the others?
Line graph
Why is it a good idea to make a graph of the data in the data table?
Viewing the data is an easy way to see some of their characteristics such as trends, seasonality, outliers, relationship between variables (linear, quadratic, power etc).
What do you call a measure of the strength and direction of the relationship between two variables or data sets?
A measure of association. You might be thinking of the correlation coefficient in particular.
What is the purpose of graphing data?
graph is a quick picture of relationship between two variables
What is the best way to represent data that compares the relationship between two variables?
A scatter plot.
Explain why bar graphs are useful for comparing data?
so you know the relationship between the 2 variables
A relationship between two variables or sets of data is called?
Correlation * * * * * That is simply not true. Consider the coordinates of a circle. There is obviously a very strong relationship between the x coordinate and the y coordinate. But the correlation is not just small, but 0. The correlation between two variables is a measure of the linear relationship between them. But there can be non-linear relationships which will not necessarily be reflected by any correlation.
What are the types of variables according to functional relationship?
Qualitative Data
What is an explanation of the data that tells what relationship exists between the variable and the investigation called?
The explanation of data is called a theory.
Would let you show a relationship between two variables where each piece of data is connected to all the others?
Line Graph
Which of the following would let you show a relationship between two variables where each piece of data is connected to all the others?
Line graph
What does a correlation coefficient of r -0.01 imply about the graph of a data set?
It suggests that there is very little evidence of a linear relationship between the variables.
How do you use a table of data to check whether the relationship between two variables is a direct variation?
if it passes through (0,0) then it is a direct variation
What secondary type of data is used in econometric models?
Economic forecasting models predominantly use time-series data, where the values of the variables change over time.
How is a linear relationship between two variables measured in statistics?
The Correlation Coefficient computed from the sample data measures the strength and direction of a linear relationship between two variables. The symbol for the sample correlation coefficient is r. The symbol for the population correlation is p (Greek letter rho).
