STATISTICS - 4.1.
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Will the following variables have positive correlation, negative correlation, or no
correlation?
Outside temperature and the number of people wearing coats - Answer: Two variables
that are linearly related are said to be positively associated when above-average values
of one variable are associated with above-average values of the other variable and
below-average values of one variable are associated with below-average values of the
other variable. That is, two variables are positively associated if, whenever the value of
one variable increases, the value of the other variable also increases.
Two variables that are linearly related are said to be negatively associated when above-
average values of one variable are associated with below-average values of the other
variable. That is, two variables are negatively associated if, whenever the value of one
variable increases, the value of the other variable decreases.
Will the following variables have positive correlation, negative correlation, or no
correlation?
Years of education and annual salary - Answer: Negative
Will the following variables have positive correlation, negative correlation, or no
correlation?
Years of education and annual salary
IQ and annual salary - Answer: Positive
Explanatory Variable - Answer: Is plotted on the horizontal axis.
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
Quality content you can rely on!
Will the following variables have positive correlation, negative correlation, or no
correlation?
Outside temperature and the number of people wearing coats - Answer: Two variables
that are linearly related are said to be positively associated when above-average values
of one variable are associated with above-average values of the other variable and
below-average values of one variable are associated with below-average values of the
other variable. That is, two variables are positively associated if, whenever the value of
one variable increases, the value of the other variable also increases.
Two variables that are linearly related are said to be negatively associated when above-
average values of one variable are associated with below-average values of the other
variable. That is, two variables are negatively associated if, whenever the value of one
variable increases, the value of the other variable decreases.
Will the following variables have positive correlation, negative correlation, or no
correlation?
Years of education and annual salary - Answer: Negative
Will the following variables have positive correlation, negative correlation, or no
correlation?
Years of education and annual salary
IQ and annual salary - Answer: Positive
Explanatory Variable - Answer: Is plotted on the horizontal axis.
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
