Fit Linear Models to Scatter Plots
Statistics and Probability · Flashcards · Application
STATISTICS AND PROBABILITY · FLASHCARDS
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QUESTION
Find the linear model
y
^
=
m
x
+
b
\hat{y}=mx+b
y
^
=
m
x
+
b
through points
(
1
,
4
)
(1,4)
(
1
,
4
)
and
(
3
,
10
)
(3,10)
(
3
,
10
)
.
QUESTION
Find the slope between points
(
2
,
7
)
(2,7)
(
2
,
7
)
and
(
6
,
3
)
(6,3)
(
6
,
3
)
to model the trend line.
QUESTION
Find the line through
(
2
,
5
)
(2,5)
(
2
,
5
)
with slope
m
=
3
m=3
m
=
3
in the form
y
=
m
x
+
b
y=mx+b
y
=
m
x
+
b
.
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ANSWER
y
=
3
x
−
1
y=3x-1
y
=
3
x
−
1
. Use point-slope form:
y
−
5
=
3
(
x
−
2
)
y-5=3(x-2)
y
−
5
=
3
(
x
−
2
)
, then simplify.
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