Solution 12009: Calculating Variance on the TI-83 Plus Family of Graphing Calculators.
... How is variance calculated on the TI-83 Plus family of graphing calculators? The TI-83 Plus family of graphing calculators calculates two types of standard deviation: the standard deviation of the sample and the population standard deviation. The population standard deviation, denoted by sx, di...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/12009
Solution 34498: Causes of a Singular Matrix Error on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...mily of graphing calculators? The message "ERROR:SINGULAR MATRIX" may be the result of one of two possible things. The first reason is an attempt to take the inverse of a matrix for which the determinant is zero. A second possible cause for this error message is if the coordinates provided are o...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34498
Solution 34651: Graphing Histograms on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...aph a histogram on the TI-83 Plus and TI-84 Plus family of graphing calculators? The following example will demonstrate how to graph a histogram. Data for this example: xStat: {2,4,6,8} frequency: {7,8,4,9} Enter the data: 1) Press [stat] [5] [enter] to run the 5:SetupEditor command which w...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34651
Solution 34497: Creating and Viewing a Residual List on the TI-84 Plus family of graphing calculators.
...n the List editor. For example: Caculate a linear regression for the following values: L1: {1, 2, 3, 4, 5, 6} L2: {2, 4, 6, 8, 9, 12} 1) Press [STAT] [1]. 2) Press [Up Arrow] until the cursor is on the top line, highlighting L1. 3) Press [CLEAR] [ENTER]. 4) Press [Down Arrow] [1] [ENTER] [2]...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34497
Solution 34653: Performing String Operations on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
... string3, and so on. string1+string2+string3... • Press [ENTER] 2. Converting an equation to a string. The Equ>String( command, located in the CATALOG menu, converts the content of a Y= variable to a string and stores it as a string variable. 3. Converting a string into an equation. The ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34653
Solution 34473: Calculating Variance on the TI-84 Plus Family of Graphing Calculators.
... How is variance calculated on the TI-84 Plus Family of graphing calculators? The TI-84 Plus Family of graphing calculators calculates two types of standard deviation: the standard deviation of the sample and the population standard deviation. The population standard deviation, denoted by sx, di...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34473
Solution 34799: Calculating the Confidence Interval for Slope on the TI-84 Plus Family of Graphing Calculators.
...ulators? To calculate the confidence interval for a slope follow the example below: Example: L1: {4,5,6,7,8} L2: {1,2,3,3.5,4.5} Solution: • Press [STAT] [ENTER] to enter the STATS editor. • Press [4] [ENTER] [5] [ENTER] [6] [ENTER] [7] [ENTER] [8] [ENTER]. • Press [►]. • Press [1] [ENTER] [2] [...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34799
Solution 11978: Performing Unit Conversions Using Science Tools Application on TI-83 Plus Family or TI-84 Plus Family Graphing Calculators.
...rs do not have built in functionality in order to perform unit conversions, however you can load an application called the Science Tools App which contains a unit converter. To run the Science Tools: 1) Press the [APPS] key and use the arrow keys to scroll down to SciTools and then press the [ENT...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11978
Solution 34425: Entering Measured Angles in Gradients on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators
...gle (p/2, 90°) to 100 grads. Angle in grads = angle in degree * (400/360) Angle in degree = angle in grads * (360/400) A simple work around is to stay in radian mode and to define two conversion constants: 400/(2p) → R 2pi/400 → G Which can be used as sin(20G) in order to calculate the sine ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34425
Solution 34793: Calculating the GCD() (Greatest Common Divisor) on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...hing calculators? The gcd() function is used to calculate the greatest common divisor of two arguments of which must be nonnegative integers. When listA and listB are specified, gcd( returns a list of the gcd of each pair of elements. If list and value are specified, gcd( finds the gcd of each li...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34793
Solution 34500: TI TestGuard™ Application for the TI-84 Plus and TI-84 Plus C Silver Edition Validation Feature Information.
... of the software to ensure it still has TI authentic software (not corrupted software or from a non-TI source). Why is TI authentic software important?a. The reason to care that you have TI authentic software is the knowledge that you have confidence with the algorithms on the calculator and ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34500
Solution 34774: Using Boolean Logic on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...value is zero (false). and, or, and xor (exclusive or) return a value of 1 if an expression is true or 0 if an expression is false, according to the table below. valueA and valueB can be real numbers, expressions, or lists. The syntax for each is listed below. • ValueA and valueB • ValueA or v...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34774
Solution 34812: Percent (%) Operator on the TI-83 Plus and TI-84 Plus Family.
...ercent operator (%)? The TI-83 Plus and TI-84 Plus Family does not include a percent operator (%). Therefore, in order to convert a number to a percentage, simply divide that number by 100. Likewise, to convert a percentage to a number, multiply that number by 100. The following examples demonstr...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34812
Solution 34851: Finding Days Between Dates on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
... method, use the date function dbd( ) or "days between dates". date1 and date2 can be numbers or lists of numbers within the range of the dates on a standard calendar. The dbd( ) function is found by accessing the Finance App and selecting option D. The syntax is as follows: dbd(date1,date2) ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34851
Solution 34877: Calculating Hypergeometric Probability Distributions on the TI-84 Plus CE and TI-84 Plus C Silver Edition.
...probability distribution on the TI-84 Plus CE and TI-84 Plus C Silver Edition? There is no pre-defined function in the calculator that will find the statistical values for a hypergeometric probability distribution. However, users can enter the formula to find the results for this type of distribu...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34877
Solution 34717: Graphing Angle Measures on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...y of graphing calculators? When graphing the measure of an angle, it will be graphed as a system of 2 parametric equations. This is done because the standard function graphing mode is limited to solving for Y= functions in which the "x" is the independent variable and "y" is the dependent variabl...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34717
Solution 13322: Using the RandInt() Function on the TI-84 Plus and TI-83 Plus.
... function generates and displays a random integer within a range specified by lower and upper integer bounds for a specified number of trials. The syntax for the randInt() function is listed below. randInt( lower,upper[,number of trials]) Example: Find three random integers between 1 and 6: 1) P...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/13322
Solution 34656: Resolving the TI Connect™ Software Error "Access Denied" When Transferring Apps/OS Files to the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...error. Please try the following troubleshooting steps if the error persists. Perform a manual "Garbage Collect": 1) Press [2nd] [0] to access the catalog 2) Press [tan] to jump to "G" and select GarbageCollect then press [enter] 3) Press [enter] [2] Please Note: A manual "Garbage Collect" can ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34656
Solution 34655: Using the RandInt() Function on the TI-84 Plus CE and TI-84 Plus C Silver Edition.
... function generates and displays a random integer within a range specified by lower and upper integer bounds for a specified number of trials. The syntax for the randInt() function is listed below. randInt( lower,upper[,number of trials]) Example: Find three random integers between 1 and 6: • ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34655
Solution 38335: Transferring Calculator Files to the TI-SmartView™ CE Emulator Software for the TI-84 Plus Family.
...agnifying Glass] icon to return to Calculator Emulator Workspace.Please Note: If the file already exists on the calculator you will receive a dialog stating "Something is already there" choose [REPLACE] to update the file with the one you are transferring or [CANCEL] to not transfer the file.You ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/38335
Solution 12705: Differences Between Algebraic Operating System (AOS) and Equation Operating System (EOS).
...e entered after the argument, such as exponents, factorials, r (radians), ° (degrees), and unit conversions.3) Powers and roots, such as 2^5. 4) Permutations (nPr) and combinations (nCr). 5) Multiplication, implied multiplication and division. 6) Addition and subtraction. 7) Relational functions,...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/12705
Solution 37375: Steps to follow to update the TI-84 Plus CE to the Latest Calculator OS and Apps.
...a TI-84 Plus CE graphing calculator. Because most of the TI-84 Plus CE Apps have been updated, the calculator OS update requires most Apps to be reinstalled, so they all match the OS version. Handheld OS UPDATE Process Using a Computer: Recommended process (fastest option) requires you delete al...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/37375
Solution 12660: Equations Used to Calculate Linear Regressions on TI Graphing Calculators.
...ns on TI graphing calculators? Typically, math classes use the form ax+b or mx+b (this ties into how polynomials are presented: ax2+bx+c). However, statistics classes often use the form a+bx. The TI-81 and the TI-85 use the form typically used in statistics classes, a+bx. The TI-80, TI-82, TI-...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/12660
Solution 37355: TI-84 Plus CE Press-to-Test Mode in Dutch Differences from Other Languages.
...ther languages? A list of differences are below: To enter Press-to-Test you use the key combination [ENTER][+][ON]. When enabled, an orange status bar rather than the blue status bar will appear. If using the TI-84 Plus CE–T the LED will blink amber. PlySmlt2, Conics, Inequalz, &...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/37355
Solution 12208: Calculating Covariance on TI Graphing Calculators.
... like the coefficient of correlation. Actually, it is a step leading to the calculation of the correlation coefficient. Covariance for a sample of data stored in the X and Y lists is given by [sum(x's - mean of x)(y's - mean of y)]/(n-1). The correlation coefficient is given by Covariance/(Sx*Sy...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/12208