How to Find the Standard Deviation Using a Casio FX-9750GA Calculator

Written by stephanie ellen
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How to Find the Standard Deviation Using a Casio FX-9750GA Calculator
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The Casio FX-9750GA is a handheld graphing calculator that can plot graphs, compile tables and perform a variety of basic statistical calculations, including standard deviations, a measure of how spread out data points are around the population's mean value. In order to find the standard deviation of a set of data, you must first enter the data into a list.

Skill level:
Moderately Challenging

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Instructions

  1. 1

    Select "Stat" from the main menu to display the data lists.

  2. 2

    Type your data into the lists. For example, type your "X" data into List 1 and your "Y" data into List 2. Move through the rows and columns with the arrow keys.

  3. 3

    Press the "F4" key.

  4. 4

    Select "(1Var)" and press "Enter." The 1-Variable screen appears with the sample standard deviation listed as "Xsigman-1."

Tips and warnings

  • Don't leave any blank rows between values when entering your data; the calculator will take the value as zero and skew your result.

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