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Flashcards > D.3 Human Evolution. Calculating Standard Deviation on the TI-83 Family and TI-84 Plus Family of Graphing Calculators. - Knowledge Base by Texas Instruments - US and Canada. How do I calculate standard deviation on my TI-83 family or TI-84 Plus family calculator? Standard deviation can be calculated using several methods on the TI-83 family and TI-84 Plus family graphing calculators. Standard deviation can be calculated by using the stdDev() function. The stdDev() function can be located by performing the following: Follow the examples listed below to calculate standard deviation of one or two list of data. Ex. . • Press [2nd], [LIST], scroll to MATH and select 7:stdDev( • Press [2nd] [(] [2] [,] [3] [,] [5] [,] [1] [,] [4] [2nd] [)] [)]• The screen should now display 'stdDev({2,3,5,1,4})'• Press [ENTER] and the standard deviation of the list will be displayed Ex.

The standard deviation is also calculated and displayed when 1-variable or 2-variable statistics are calculated. The example below will demonstrate how to calculate 1-variable statistics on the TI-83 family and TI-84 Plus family. x ={5, 9, 7, 4, 6, 250, 35, 100, 84} Using Excel to do Basic Statistical Tests. Before you do statistical tests, it’s important to understand what they are. This help sheet assumes that you have this basic knowledge and some general idea about how to use Excel. Descriptive statistics There are two major summary statistics that one usually wants. One is a measure of the central tendency of the numbers, like a mean (average), median, or mode. The second is a measure of how different the numbers are, which we measure using standard deviation, standard error, or variance. Enter your data in columns.Click on the empty cell after your last number in a column.Hit the = sign in the bar at the top of the spreadsheet. T tests T tests can be used to compare two groups or treatments.

Click on any empty cell. To answer the "tails" question, remember your prediction about the direction of the difference between the groups. There are three types of T test you can use on Excel. Now hit "OK" and see what the number is. Correlations Enter your data in two columns. Chi Square Test. Stephen Taylor’s Presentations on SlideShare. Home - The Association for Science Education.

Resources. Exploring Science QCA - Teacher Support. Technician's Notes The technician's notes list the apparatus needed for each practical suggested in the Teacher's Guides. Click here to select which units you need. Record sheet Click here to download a record sheet in Excel, for you to annotate on-screen, or print off and fill in. Using resources Exploring Science has lots of different components – and there is more than one way of using many of them. Click here for suggestions on using the resources. Ideas, Evidence and Breadth of Study Sc1 and the Breadth of Study statements are integrated into Exploring Science. We will be providing lists of the statements from Sc1 and Breadth of Study that depend on content, rather than on development of skills. Year 7 Year 8 Year 9.

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