STAT
(STAT)(Var)(M) (STAT)(Var)(Σx)
Results: Mean: 3 Population Standard Deviation: 1.154700538
3 To calculate the linear regression and logarithmic regression correlation coefficients for the following
(SETUP)(Fix)
(STAT)(A + BX) | STAT | FIX |
|
|
20 110 200 290 AC
3150 7310 8800 9310
(STAT)(Reg)(r)
(STAT)(Type)(In X) (STAT)(Reg)(r)
(STAT)(Reg)(A) (STAT)(Reg)(B)
Results: Linear Regression Correlation Coefficient: 0.923 Logarithmic Regression Correlation Coefficient: 0.998 Logarithmic Regression Formula: y =
Calculating Estimated Values
Based on the regression formula obtained by
4 To determine the estimate value for y when x = 160 in the regression formula produced by logarithmic regression of the data in 3. Specify Fix 3 for the result. (Perform the following operation after completing the operations in 3.)
160 (STAT)(Reg)(L)
Result: 8106.898Important: Regression coefficient, correlation coefficient, and estimated value calculations can take considerable time when there are a large number of data items.
C