ࡱ> AC@{ k bjbjzz .$k||<&$ JJJJJ%%%      $x!*$% %%%%%% JJ: %JJ%rTJ k;P 0 $;L$$L%%%%%%%% % %%% %%%%$%%%%%%%%%| : Mean and Standard Deviation on Casio Calculator (FX-83ES) Example 1 List of numbers Calculate the mean and standard deviation of the following array of numbers. 8, 8, 9, 11, 14 Press MODE ( 2 ( 1 (this puts calculator in Stats mode) Inputting the data: Press 8 ( = 8 ( = 9 ( = 11 ( = 14 ( = Press AC ( SHIFT ( 1 ( 4 (or 5 on fx-85GT) For the mean, press 2 ( = (you should get an answer of 10) For standard deviation, repeat step 3 and then press 3 ( = (you should get an answer of 2.28) Example 2 Frequency table Calculate the mean and standard deviation of the following frequency table.  Press MODE ( 2 ( 1 (this puts calculator in Stats mode) Make sure you have a two column table. If you dont, press SHIFT ( MODE ( down arrow ( 3 ( 1 Press 10 ( = 12 ( = 13 ( = 16 ( = Now use the arrow button to bring the cursor to the top of the 2nd column and press 12 ( = 5 ( = 9 ( = 7 ( = 5. 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