Solution 34424: Coefficient (r-Values) are not Displayed When Calculating Statistical Regressions on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...4 Plus family of graphing calculators, the r and r2 values are computed for LinReg(a+bx), LinReg(ax+b), ExpReg, PwrReg and LnReg. R2 is computed for QuadReg, CubicReg and QuartReg. The r, r2 and R2 values are not computed for Logistic, SinReg and Manual-Fit. All the r-value variables can be fo...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/troubleshooting-messages-unexpected-results/34424
Solution 11925: Calculating Logistic Regressions Using the TI-83 Family, TI-84 Plus Family, and TI-Nspire™ Handheld in TI-84 Plus Mode.
...] to access the STAT list editor. 2) Enter the data into the L1 and L2 lists, making sure to press [ENTER] after each entry. 3) Press [2nd] [MODE] to QUIT and return to the home screen. To calculate the logistic regression: 1) Press [STAT] and scroll right to highlight the CALC menu. 2) Press [...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11925
Solution 11918: Calculating and Graphing a Linear Regressions on the TI-83 Plus.
... right, now press [1] [1]. 4) Press the [ENTER] key to perform the regression calculation. The graphing calculator will display the form of the equation as (y=a+bx) and list the values for the two coefficients (a and b). It will store the regression equation to your Y1 function. The correlat...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11918
Solution 34855: Calculating a Median-Median Regression on the TI-84 Plus Family of Graphing Calculators.
...arch How do I calculate a Median-Median Regression on the TI-84 Plus family of graphing calculators? Med-Med (median-median) fits the model equation y=ax+b to the data using the median-median line (resistant line) technique, calculating the summary points x1,y1,x2,y2,x3 and y3. Med-Med d...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34855
Solution 11919: Calculating Cubic Regressions on the TI-83 Plus Family of Graphing Calculators.
...-83 Plus family of graphing calculators? The example below will demonstrate how to calculate a cubic regression. Example: Find the cubic regression equation for the x and y values below. xStat: {80, 84, 86, 91, 93, 96} yStat: {10, 7, 9, 18, 19, 15} Please Note: If you have data in L1 and L2 or...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11919
Solution 34598: Calculating Cubic Regressions on the TI-84 Plus Family of Graphing Calculators.
...dge Base Search How do I calculate a cubic regression on the TI-84 Plus family of graphing calculators? Example: Find the cubic regression equation for the x and y values below. xStat: {80, 84, 86, 91, 93, 96} yStat: {10, 7, 9, 18, 19, 15} To enter the data: • Enter STAT edit mode by...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34598
Solution 34506: Calculating and Graphing a Linear Regression on the TI-84 Plus family of graphing calculators.
... • Press the right arrow key to reach the CALC menu and then press 4: LinReg(ax+b). • Ensure Xlist is set at L1, Ylist is set at L2 and Store RegEQ is set at Y1 by pressing [VARS] [→] 1:Function and 1:Y1. • Scroll down to Calculate and press [ENTER]. The graphing calculator will display...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34506
Solution 34712: Graphing a Polar Equation on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...raph an equation in polar mode on the TI-83 Plus and TI-84 Plus family of graphing calculators? Polar equations can be graphed in either Radian or Degree mode. Follow the steps below to graph the equation r=1-sinq Example : 1) Press [mode] [↓] [↓] [enter]. 2) Press [↓] [→] [→] [enter]. 3) Press...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34712
Solution 13924: TI TestGuard 2.0™Quick Start Instructions.
...onality disabled rather than deleted. The functionality can be re-enabled once the exam is over. • Set the initial angle to the desired preference. DEGREE is the factory default. • Select the initial setting for Stat Diagnostics, which offers the ability to view the r and r^2 values in statistics...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/13924
Solution 30651: Calculating a Median-Median Regression on the TI-83 Plus Family of Graphing Calculators.
...rch How do I calculate a Median-Median Regression on the TI-83 Plus family of graphing calculators? Med-Med (median-median) fits the model equation y=ax+b to the data using the median-median line (resistant line) technique, calculating the summary points x1,y1,x2,y2,x3 and y3. Med-Med d...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/30651
Solution 12648: Calculating Linear Regressions on the TI-81.
...[2nd] [STAT].2) Scroll to DATA.3) Press [1].4) Enter the data as x-y coordinates 1 [ENTER] 7 [ENTER] 4 [ENTER] 9 [ENTER] 8 [ENTER] etc.5) Press [2nd][QUIT] to leave the editor. Calculate the Linear Regression (ax+b):1) Enter the STAT mode again by pressing [2nd] [STAT].2) Press [2] to select LinR...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12648
Solution 10424: Degree, Minutes, Seconds (DMS) Conversions with the TI-85 or TI-86.
...inutes, Seconds (DMS) conversions with the TI-85 and TI-86? The TI-85 and TI-86 recognize a number as DMS when that number is entered using a single quote after each value. For example, 15'12'8' would be interpreted as 15 degrees, 12 minutes and 8 seconds. The ' symbol can be accessed by press...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10424
Solution 11810: Calculating a Cubic Regression on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
... the down arrow, then press [C][2] (Indicates the y variables are in c2). On the TI-89 family, press [ALPHA][C][2]. 10) To graph the line, select an equation number after Store RegEQ to... 11) Press [ENTER][ENTER]. A dialog box will display the cubic regression variables. 12) Press [♦][F3]...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11810
Solution 10578: Degree, Minutes, Seconds (DMS) Conversions with the TI-82.
...s, seconds (DMS) conversions using the TI-82? The TI-82 recognizes a number in DMS when that number is entered using a single quote after each value. For example, to convert 15 degrees, 12 minutes and 8 seconds to decimal degrees, input 15'12'8' and press [ENTER]. The ' is...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10578
Solution 10414: Calculating Linear Regressions on the TI-86.
...nto the TI-86: • Enter STAT mode by pressing [2nd] [STAT]. • Press [F2] to select Edit. • Enter the data in the xStat and yStat lists. • Press [2nd] [QUIT] to leave the editor. To calculate the Linear Regression (a+bx): • Enter the STAT mode again by pressing [2nd] [STAT]. • Press [F1] to select...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10414
Solution 12062: Calculating Median-Median Regression Using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...s the X values are in C1). 8) Press the down arrow, then press [alpha] [C] [2] (indicates the Y values are in C2). 9) To graph the line, select an equation number after "Store ReEQ to..." 10) Press [ENTER] [ENTER]. A dialog box will appear with the median-median regression variables. Plea...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12062
Solution 23891: Setting Constraints to Remove the @n Symbol From a Trigonometric Equation Using the Solve Command on TI-89 Family, TI-92 Plus Family and the Voyage™ 200.
... show the user must restrict the equation to show only one revolution of a circle. This is done one of two ways depending on whether the unit is in degree or radian mode. Please see the below example: 1) For radian mode use the restriction x>0 and x0 and x0 and x<360 Please see the TI-89 fam...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/23891
Solution 10395: Calculating a Linear Regression Using the TI-85.
...] [3].4) Press [2nd] [F1] [ENTER] [ENTER].5) Press [F3] to display the results for a linear regression. The calculator will display the form of the equation (y=a+bx) and then list the values for the two coefficients (a and b). It will also list a value for corr. This is the correlation coeffic...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10395
Solution 10371: Calculating and Graphing a Linear Regression on the TI-82.
...o the TI-82:1) Enter STAT edit mode by pressing [STAT] [1]. 2) Enter the data in the L1 and L2 lists, pressing enter after each entry.3) Press [2nd] [QUIT] to leave the editor.Calculate the linear regression (ax+b):1) Enter the STAT mode again by pressing [STAT].2) Select CALC.3) Press [5] to sel...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10371
Solution 18689: Calculating the gcd() (Greatest Common Divisor) on the TI-73 Family Graphing Calculators.
...ument is a list and the other a non-list, the non-list is paired with each element of the list, and a list is returned. Note: This is function is frequently used with fractions to reduce them to lowest terms on the TI-73 family. The syntax is as follows: gcd(valueA,valueB) Examples: • ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/18689
Solution 11707: Calculating Linear Regressions on the TI-89 Family, TI-92 Family, and Voyage 200™ Graphing Calculators.
... c1 (Indicates the x variables are in c1) • Press the down arrow, then input c2 (Indicates the y variables are in c2) • To graph the line, select an equation number after Store RegEQ to... • Press [ENTER][ENTER] The dialog box with the linear regression variables will be displayed. Please see ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11707
Solution 28011: Using the Chi-Squared Goodness of Fit Test on the TI-89 Family, TI-92 Plus, or Voyage™ 200 Graphing Calculators.
...chi-squared goodness of fit test on a TI-89 family, TI-92 Plus, or Voyage 200 use the Statistics with List Editor App. Using the lists below and a degree of freedom of 2, follow the steps below to calculate and draw the chi-squared goodness of fit test: List 1: {16,25,22,8,10} List 2: {16.2,21.6...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/28011
Solution 12323: Calculating the Linear Regression on the TI-30X IIB / TI-30X IIS.
...NTER]6) Repeat steps 3 and 4 until all the above data points are entered. Users must press [ENTER] or the down arrow to save the last data point or FRQ value entered. If users add or delete data points, the TI-30X IIS/B or the TI-34 Explorer Plus automatically reorders the list.7) When all points...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12323
Solution 34657: Converting an Angle from Radian to Degree on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...radian to degree, please follow the steps listed below: 1) Press [MODE] [↓] [↓] [→] [ENTER] to change the mode setting to degree. 2) Press [2nd] [Quit] [Clear] to quit out the mode screen and clear the home screen. 3) Press [2] [2nd] [π] [2nd] [ANGLE] [3] [Enter] this will convert the 2π t...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34657
Solution 34733: Performing Degrees, Minutes, Seconds (DMS) Conversions on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...es, minutes, seconds. • Make sure the handheld is in DEGREE mode by pressing [MODE], scrolling to DEGREE and pressing [ENTER]. Press [2nd] [MODE] to QUIT and return to the home screen. • Input 15.375. • Press [2nd] [APPS] to access the ANGLE menu, then press the [4] key to select the ►DMS functi...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34733