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when there is no relation between the variables
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Can a correlation be measured?
A correlation can be measured by comparing negative and positive aspects of two or more items. If there are 4 items and 4 identical positives there is a 100% correlation between the 4 items.
What are the three conditions necessary for causation between variables?
correlation, temporal priority, lack of spurious correlation
What was Nevada's population in 1950?
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Relationship of history and other discipline in social sciences?
Correlation is the innovation of the subjects and activities. It is a technique which tries to establish a reciprocal relationship among the various subjects of the curriculum. History provides a rich ground for correlation with different subjects as well as correlation with different places and times. Trevelyan has very aptly remarked, "History is not a subject at all but a house in which all subjects dwell."
What is correlation between unemployment and divorce?
The correlation between unemployment and divorce is the ending of a job and the ending of marriage. However, that being said unemployment versus divorce is a poor example as a divorce hurts more than being unemployed.
A correlation coefficient of zero indicates?
A correlation coefficient of zero means that two things are not correlated to each other.
What does a correlation coefficient of zero indicates?
A coefficient of zero means there is no correlation between two variables. A coefficient of -1 indicates strong negative correlation, while +1 suggests strong positive correlation.
When two variables are found to be unrelated the correlation coefficient would be?
Zero.
If coefficient of correlation r between two variables is zero does it mean that there is no relationship between the variables Justify your answer?
"If coefficient of correlation, "r" between two variables is zero, does it mean that there is no relationship between the variables? Justify your answer".
What is the maximum and minimum value of the correlation coefficient?
The correlation can be anything between +1 (strong positive correlation), passing through zero (no correlation), to -1 (strong negative correlation).
If two variables are highly correlated the correlation coefficient will be at or near zero-true or false?
If two variables are highly correlated, the Pearson correlation will be close to -1.0 or +1.0. A correlation of zero shows no relationship.
Is -0.0001 a correlation coefficient?
Yes it can be a correlation coefficient.
Is 1.5 a correlation coefficient?
No, it cannot be a correlation coefficient.
Is 0.5 the strongest correlation coefficient?
No. The strongest correlation coefficient is +1 (positive correlation) and -1 (negative correlation).
What is the range of correlation coefficient and what does its value tell?
The product-moment correlation coefficient or PMCC should have a value between -1 and 1. A positive value shows a positive linear correlation, and a negative value shows a negative linear correlation. At zero, there is no linear correlation, and the correlation becomes stronger as the value moves further from 0.
Which correlation coefficient indicates the weakest relationship between variables?
Pearson's Product Moment Correlation Coefficient indicates how strong the relationship between variables is. A PMCC of zero or very close would mean a very weak correlation. A PMCC of around 1 means a strong correlation.
What are the properties of correlation coefficient?
The correlation coefficient is symmetrical with respect to X and Y i.e.The correlation coefficient is the geometric mean of the two regression coefficients. or .The correlation coefficient lies between -1 and 1. i.e. .
