How to Do Statistics on a Casio Calculator

Written by stephanie ellen
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Statistical calculations can be cumbersome and time consuming. In addition, handwritten calculations are prone to errors. One solution is to use a Casio calculator to help you with your calculations. Switching to statistical mode on a Casio calculator enables you to easily enter data sets and find out basic descriptive statistics like the variance and standard deviation, which are measures of how data is spread out about the mean. There are many models of Casio calculators, but most Casio scientific calculators and Casio graphing calculators share some common functionalities.

Skill level:
Moderate

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Instructions

  1. 1

    Press the "Mode" key, then press the "." key. The letters SD should appear at the top right of the screen.

  2. 2

    Press "INV," and then press "AC" to clear the memory.

  3. 3

    Enter your data points using the numeric keypad. Follow each number with the "M+" key. For example to enter the number 90 into the calculator. Type "9," then "0," then "M+."

  4. 4

    Press INV," and then press "7" to find the mean.

  5. 5

    Press INV," and then press "9" to find the standard deviation. If you want to find the variance, press "x2" after you enter the standard deviation.

Tips and warnings

  • If you have multiple numbers in a group, enter them by pressing the multiplication key, and then the number in the group. For example, if you are entering 1,2,3,3,3,3,3, 4,5, the number 3 appears five times. Enter "3," then "x," then "5," then "M+" in this example.

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