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How can you determine whether two variables x and y for a real life situation are correlated?
You calculate a correlation coefficient and test to see if it is statistically different from 0.
How can you compare values in tables of two variable categorical data?
The answer depends on what aspect you wish to compare: If you wish to find out if the two variables are correlated one statistical technique is the chi-square test.
What is a correlated query?
Correlated query has a subquery in it which accesses the column name of a table alias which is outside the subquery.
Are factor pairs ever repeated across pairs?
Yes. Factor pairs are always repeated across pairs since factor pairs are certain kinds of pairs.
What is a no correlation graph?
There are three types of correlation: positive, negative, and none (no correlation).Positive Correlation: as one variable increases so does the other. Height and shoe size are an example; as one's height increases so does the shoe size.Negative Correlation: as one variable increases, the other decreases. Time spent studying and time spent on video games are negatively correlated; as the your time studying increases, time spent on video games decreases.No Correlation: there is no apparent relationship between the variables. Video game scores and shoe size appear to have no correlation; as one increases, the other has no effect. A No Correlation graph would show this.
What are two variables that are negatively correlated?
As the population increases, the living space per capita of the country decreases.
What is negatively correlated?
Two variables are negatively correlated when the slope of the best-fit line that is drawn on the scatter plot with the independent variable on the x-axis and the dependent variable on the y-axis is negative.
If the value of two variables decreases are they positively correlated?
Not necessarily. They must decrease together (the question does not say so). Also, the decreases may not be sufficient for the to be correlated. It is less likely that they are negatively correlated, but with the amount of information in the question that is about all that can be said.
Two variables that are likely to be correlated?
Height and Weight.
Do two variables that are significantly correlated share a variance?
No, they do not.
What variables are correlated?
The number of TV sets in the UK and my age.
Is it correct to state that when inflation increases unemployment decreases?
Yes, they are negatively correlated.
Watson et al. (1984) - Narcissism and global empathy are _______ correlated?
Negatively
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.
What are the values of coefficient of correlation between perfectly correlated variables?
1 or -1
What preposition should follow the word correlated?
The preposition "with" should follow the word "correlated." For example: "The data suggests that these two variables are strongly correlated with each other."
What correlated variables are not independent among themselves?
Those are called outliers, in the data, they are bythemselves
