Old Operating System Manual

To Find a z-value from the Area to the Left of z

  1. Press 2nd VARS to get to the DISTR menu.
  2. Press the down arrow key to highlight invNorm, and press ENTER.
  3. Input the percentage, expressed as a decimal, and press ).
  4. Press ENTER. The calculator should display the desired z-value.

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Statistics Calculator Packet - Old OS by Crystal Holtzheimer is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License, except where otherwise noted.

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