HP 40gs hp 40gs_user's guide_English_E_HDPMSG40E07A.pdf - Page 105
Statistics aplet
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hp40g+.book Page 1 Friday, December 9, 2005 1:03 AM 10 Statistics aplet About the Statistics aplet The Statistics aplet can store up to ten data sets at one time. It can perform one-variable or two-variable statistical analysis of one or more sets of data. The Statistics aplet starts with the Numeric view which is used to enter data. The Symbolic view is used to specify which columns contain data and which column contains frequencies. You can also compute statistics values in HOME and recall the values of specific statistics variables. The values computed in the Statistics aplet are saved in variables, and many of these variables are listed by the function accessible from the Statistics aplet's Numeric view screen. Getting started with the Statistics aplet The following example asks you to enter and analyze the advertising and sales data (in the table below), compute statistics, fit a curve to the data, and predict the effect of more advertising on sales. Advertising minutes (independent, x) 2 1 3 5 5 4 Resulting Sales ($) (dependent, y) 1400 920 1100 2265 2890 2200 Statistics aplet 10-1