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9g Graphing Calculator
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E-61
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Example
45
In the data in Example 44,
change Y
1
= 4 t
o Y
1
= 9 an
d X
2
= 5 t
o
X
2
= 8, then f
ind Sx = 2
.64
5
7
51311
[ D
A
TA ]
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9
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8
1
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