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– [Statistics] > [Summation] > [Σx]
4. Calculate the mean (
x
).
– [Statistics] >
[Mean/Var/Dev
...
] > [x]
Note
• To display the 1-Var Results screen from the statistical calculation screen above, press
and then select [1-Var Results]. To return to the statistical calculation screen from
the 1-Var Results screen, press or .
Example 7: To determine the coefficients (a, b) and correlation coefficient
(r) of the linear regression equation "y = a + bx" based on the paired-
variable data input in Example 4 (page 71)
1. Perform steps 1 through 5 of the procedure under Example 4 (page
71).
2. Select [Statistics Calc], and then press
.
• This displays the regression type menu.
3. Select [y=a+bx], and then press .
4. Determine the coefficients (a, b) and correlation coefficient (r) of the
regression equation "y = a + bx".
– [Statistics] > [Regression] > [a]
– [Statistics] > [Regression] > [b]
76
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