Into L1 and the corresponding probabilities should be entered into Your random variable(X) values should be entered Press MATH, cursor over to PRB, and down to 3:nCr.Press MATH, cursor over to PRB, and down to 2:nPr.Press MATH, cursor over to PRB, and down to 4:!.Call the matrix you want to reduce and hit ENTER.Press MATRX, cursor right to MATH, and select.Fast RREF (This only works when the #rows is less than or equal to.Hit the x inverse button ( x^-1) which is directly below the.Call that matrix from your home screen.Enter the matrix for which you would like to find the inverse.To actually see the transpose, hit ENTER. You should now see the symbolic representation of transposing your matrix.Hit MATRX, cursor right to MATH and select option.Call the matrix you would like to transpose from the home screen.Matrix you need to do computations with will now be on your homescreen. You get to the matrix you want and hit ENTER. Press MATRX and cursor down under the NAMES list until.Make sure you are on the home screen before you begin.You can always move around to different elements with your cursor keys, too. To the next row and continue in the same fashion until you reach the last element of the matrix. If you enter the elements and press ENTERĪfter each element, the cursor will move left to right across the rows and then down (ROW NUMBER FIRST, COLUMN NUMBER SECOND!!!) Cursor right two places to EDIT and hit ENTER.If you have a TI-83 Plus or any version of the TI-84, when you see directions to hit the MATRX button, you need to hit 2nd x^(-1). Y value under Y2 and then find the intersection point between To find an x value from your regression line when given a y value, enter the.hit CALC (2nd TRACE) and select option 1:value. Whichever function your line is in)) and then open the left parenthesis, type the x value and close your parenthesis. The main calculator screen and call up your function name ( VARS, cursor right to To find a y value from your regression line when given an x value, go to.If you don't see anything, adjust your window You can then highlight any of the options you would like. To graph the regression line with the data points, first make sure your stat plot.When this comes up on your home screen, press ENTER and it should say To do this, hit 2nd 0, and cursor down to select DiagnosticOn. If you don't have the r stuff, then you need to turn your diagnostics Your regression line is the equation now saved under Y1. The following should appear on your screen: LinReg(ax+b) L1, L2, Y1 or LinReg(ax+b) Y1 (if you are using L1 and L2 for your lists) You should now see the following on your home screen: Whichever function you would like) to specify where the regession equation will be saved. (REMEMBER THE COMMAS! You do not have to specify the lists if you are using L1 and L2 for your x and y-values, respectively.) Hit VARS, cursor right to Now press 2nd 1 ,Ģnd 2, to specify the x list and y list. To find the regression equation, first hit STAT, cursor right toĬALC and select option 4:LinReg(ax+b).Now just enter in your values one at a time by pressing ENTER after If you have anything in L1 or L2,Ĭursor up to the name of the list, hit CLEAR and ENTER. The intersection point will appear at the bottom of the screen.Use your right and left arrow keys to move to The calculator will then ask you to guess where the intersection point is.The cursor will blink on a function and show the function name in the The calculator will prompt you for the first and second curves you want to.Go to CALC which is found by pressing 2nd TRACE.Graph the two functions by entering the slope-intercept form of the.The reduced fraction for your value should appear if it is a rational number.įinding the Intersection Point of Two Lines Calculator Help-141 TI-83/84 Calculator Help in MATH 141 / 168 Finding an Exact Fractional Value of a Decimalįrom your home screen, if you have calculated a value which is not an integer value, you can determine whether or not it is a rational number and can be written as an exact fraction by hitting MATH and choosing option 1: Frac and then hitting ENTER.
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