Sharp EL-W516T - Page 65

65
<Example 5>
When a weight was hung on a spring, the following
relation was obtained for the extension of the spring and
the force applied to the spring. Use linear regression to
find the coefficients a and b of the relational expression
y = a + bx, and the correlation coefficient r.
Operation
0.028 0.20
0.073
0.207
...
Spring extension x [m] Force F [N]
0.028
0.073
0.207
0.118
0.16
0.2
0.39
1
0.6
0.77
0.39
1.00
Display
DATA
DATA
(Close the input table.)
S TAT