Press Menu.
Use arrows to highlight STAT icon and press EXE.
Enter your data in two lists (x-values in L1, Y-values in L2)
Press F2 to activate the CALC Tab at the bottom of screen.
This is what you see.
Press F3 to activate the REGression tab.
This is what you will see: the TABs at the bottom of screen.
Each tab corresponds to a regression model: X-linear, X2 quadratic, etc.
If you press F3:X^2, you get the following
You see the parameters of the regression equation, the coefficient of determination r^2, and the Mean Square error. No correlation coefficient is defined for this regression model.
For other models like linear, logarithmic, power and exponential regressions, the correlation coefficient is defined and is thus displayed with the regression equation. It is the r-value.
How do you type in the natural log of a certain number on this particular calculator?
draw graph
How do you plug in 2/7 x +1/4=4/9 -5/7x +4/9
into the TI30XA calculator and solve this problem?
Can someone please help
Amy
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