How do I calculate standard deviation on my TI83 Plus and TI84 Plus Family?Standard deviation can be calculated using several methods on the TI83 Plus and TI84 Plus Family. Standard deviation can be calculated by using the stdDev() function. The stdDev() function can be located by performing the following: 1) Press [2nd][LIST]. 2) Scroll to MATH and select 7:stdDev(.
Follow the examples listed below to calculate standard deviation of one and two lists of data.
Example:Find the standard deviation of the data list. List1: 2,3,5,1,4 1) Press [2nd], [LIST], scroll to MATH and select 7:stdDev(. 2) Press [2nd] [{] [2] [,] [3] [,] [5] [,] [1] [,] [4] [2nd] [}] [)]. 3) The screen should now display stdDev({2,3,5,1,4}). 4) Press [ENTER] and the standard deviation of the list will be displayed. Example:Find the standard deviation of the two data list. List1: 2,3,5,1,4 List2: 1,2,5,4,1
1) Press [2nd], [LIST], scroll to MATH and select 7:stdDev(. 2) Press [2nd] [{] [2] [,] [3] [,] [5] [,] [1] [,] [4] [2nd] [{] [)] [,] [2nd] [{] [1] [,] [2] [,] [5] [,] [4] [,] [1] [2nd] [}] [)] 9) The screen should now display stdDev({2,3,5,1,4},{1,2,5,4,1}). 3) Press [ENTER] and the standard deviation of the two lists will be displayed. The standard deviation is also calculated and displayed when 1variable or 2variable statistics are calculated.
The example below will demonstrate how to calculate 1variable statistics on the TI84 Plus C Silver Edition. x ={5, 9, 7, 4, 6, 250, 35, 100, 84} 1) Press [STAT] [ENTER] to enter the statistics list editor. 2) Enter the data into L1, pressing [ENTER] after each entry. 3) Press [2nd][QUIT] to leave the editor.
4) Press [STAT], arrow over to CALC, and press 1:1Var Stats. 5) 1Var Stats will be displayed on the home screen. Arrow down to Calculate and press [ENTER]. 6) The statistics will be displayed (The arrow keys can be used to scroll through the entire list of results). The example below will demonstrate how to calculate 2variable statistics.
Data for this example: x: {3,5,8,10} y: {7,2,3,1} 1) Press [STAT] [ENTER] to enter the statistics list editor. 2) Enter the data into L1 and L2, pressing [ENTER] after each entry.
3) Press [2nd][QUIT] to leave the editor. 4) Press [STAT], arrow over to CALC, and press 2:2Var Stats. 5) 2Var Stats will be displayed on the home screen. Arrow down to Calculate and press [ENTER]. 6) The statistics will be displayed (The arrow keys can be used to scroll through the entire list of results). Please see the TI83 Plus and TI84 Plus Familyguidebooksfor additional information.
