Casio FX-CG10 Software User Guide - Page 223
Determining Sample Standard Deviation and Sample Variance from List, To store
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k Determining Sample Standard Deviation and Sample Variance from List Data You can use functions to determine sample standard deviation and sample variance for specified list data. This calculation is performed in the Run-Matrix mode. You can perform calculations using data you saved to a list (List 1 to List 26) with the Statistics mode List Editor or list data you input directly on the Run-Matrix mode screen. Syntax StdDev(List n [,List m]) Variance(List n [,List m]) List n........Sample data List m.......Frequency data Example To store the x-data below in List 1, the frequency values in List 2, and determine the sample standard deviation and sample variance x Frequency 60 70 80 90 3 5 4 1 1. From the Main Menu, enter the Statistics mode. 2. Use the List Editor to store the above data. 3. From the Main Menu, enter the Run-Matrix mode. 4. Press the keys as follows. K5(STAT)4(StdDev)J 1(LIST)1(List)b,1(List)c)w J5(STAT)5(Var)J 1(LIST)1(List)b,1(List)c)w 6-30