23
Press
>
to scroll across to the top of
L2
.
Enter the humerus bone lengths in
L2
.
Start by entering
71
and pressing
]
(or
n
).
Press
q
†
to access the
statistics menu.
METHOD 1:
Press
3
to access
2-Var Stats
.
Select
L1
for
x
DATA
and select
L2
for
y
DATA
.
Press
to highlight
CALC
and press
n
.
(a)
Scrolling up or down we obtain:
1.196...
a
=
and
3.856...
b
= −
The least-squares regression line is
1.20
3.86
y
x
=
−
(2 dp).
(b)
In
StatVars
, scroll up or down to locate
(
y
and press
n
.
Enter
48
and press
n
.
Hence, correct to the nearest centimetre,
the humerus bone length is estimated to
be
54
cm.
Содержание MathPrint TI-30X Plus
Страница 27: ...26 So 32 0 9907 P X 4 dp...
