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Ti36eng1.doc TI-36X II Manual Linda Bower Revised:
01/10/03 10:47 AM Printed: 01/10/03 10:47 AM Page 38 of
48
8!!!!!
Ý
÷
xy a b r
Þ
3.5143
"
Ý
÷
xy a b r
Þ
0.0019
"
Ý
÷
xy a b r
Þ
0.9374
""
Ý
x' y'
10695
OV%t
2
y'(10695)
24.08
8!!
5
I
68
OV
%t
0
x'(5.68)
1126.
The equation is
y=3.5143+0.0019x
. The coefficient of
correlation is .9374. A country with a GDP per capita of
$10695 is predicted to have a telephone density of
24.08. If a country has a telephone density of 5.68, you
would expect that country to have a GDP per capita of
about $1126.