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INT1 4-52 Student eTool
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b. Use your calculator to make a residual plot to determine if a linear model is appropriate. Make a conjecture about what the residual plot tells you about the shape of the original data Giulia collected.
b. Use your calculator to make a residual plot to determine if a linear model is appropriate. Make a conjecture about what the residual plot tells you about the shape of the original data Giulia collected.
4
"x" Subscript, 1 , Baseline
x
1
"y" Subscript, 1 , Baseline
y
1
0
0
15.3
1
5
.
3
r1c3:
1
1
14.7
1
4
.
7
r2c3:
2
2
14.3
1
4
.
3
r3c3:
3
3
13.6
1
3
.
6
r4c3:
4
4
13.1
1
3
.
1
r5c3:
5
5
12.5
1
2
.
5
r6c3:
6
6
11.9
1
1
.
9
r7c3:
7
7
11.5
1
1
.
5
r8c3:
8
8
11.0
1
1
.
0
r9c3:
9
9
10.6
1
0
.
6
r10c3:
10
1
0
10.2
1
0
.
2
r11c3:
r12c3:
5
HINT: For the LSRL, check line 7 below. For more help go to:
https://www.desmos.com/calculator?tour=regressions
HINT: For the LSRL, check line 7 below. For more help go to: https://www.desmos.com/calculator?tour=regressions
6
Expression 7: "y" Subscript, 1 , Baseline tilde "m" "x" Subscript, 1 , Baseline plus "b"
y
1
~
m
x
1
+
b
7
8
powered by
powered by
"x"
x
"y"
y
"a" squared
a
2
"a" Superscript, "b" , Baseline
a
b
7
7
8
8
9
9
over
÷
functions
(
(
)
)
less than
<
greater than
>
4
4
5
5
6
6
times
×
| "a" |
|
a
|
,
,
less than or equal to
≤
greater than or equal to
≥
1
1
2
2
3
3
negative
−
A B C
StartRoot, , EndRoot
pi
π
0
0
.
.
equals
=
positive
+
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