All HiSET: Math Resources
Example Questions
Example Question #1 : Summarize And Interpret Data Presented Verbally, Tabularly, And Graphically
Determine the linear regression line for the following paired data:
The formula for a regression line for a set of paired data is the line of the equation
,
where
and
.
, the number of pairs.
is the sum of the
values:
is the sum of the
values:
is the sum of the squares of the
values:
is the sum of the
products:
Substituting:
and
are the arithmetic means of the
and
values, respectively - the sums divided by the number of values:
The equation of the linear regression line is .
Example Question #1 : Identify Lines Of Best Fit
Determine the linear regression line for the following paired data:
The formula for a regression line for a set of paired data is the line of the equation
,
where
and
.
, the number of pairs.
is the sum of the
values:
is the sum of the
values:
is the sum of the squares of the
values:
is the sum of the
products:
Substituting:
and
are the arithmetic means of the
and
values, respectively - the sums divided by the number of values:
The linear regression line is the line of the equation .
All HiSET: Math Resources
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