[12C] Percent of Total and Accumulating Statistic - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: Articles Forum (/forum-14.html) +--- Thread: [12C] Percent of Total and Accumulating Statistic (/thread-10705.html) [12C] Percent of Total and Accumulating Statistic - Gamo - 05-09-2018 03:19 AM HP-12C Owner's Handbook gave example on how to use Percent of Total [%T] I would like to extend it capability by using Accumulating Statistic [Σ+] so that by accumulating [Σ+] instead of Enter Add as show in the handbook and lost the Total Amount. By using the [Σ+] you retain the total by Recall Register 2 at any time and with this build-in statistic function this can also compute for the Average. Example: f [Σ] // Clear Statistic Registers 1. 1234 2. 2345 3. 3456 4. 4321 1234 [Σ+] --> 1 2345 [Σ+] --> 2 3456 [Σ+] --> 3 4321 [Σ+] --> 4 [RCL] 2 --> 11356 // Total 1234 [%T] --> 10.87 [CLx] 2345 [%T] --> 20.65 // If forget to press [CLx] don't worry just Recall [RCL] 2 [CLx] 3456 [%T] --> 30.43 // and try again. [CLx] 4321 [%T] --> 38.05 g [X-bar] --> 2839 // Mean g [S] --> 1341.28 // Standard Deviation [RCL] 1 --> 4 [√x] --> 2 [÷] --> 670.64 // Standard Error of the Mean Gamo