Quadratic Mean TI-84 | TI-83 Example

Joestat wants you to calculate the quadratic mean.  Use the TI-83 or TI-84 calculator.  In this example use the following data set.
{192, 188, 152, 202}

  • Enter the data into L6
    Instructions are available on how to Create a List TI-84 | TI-83.
  • Enter the quadratic mean formula into your calculator.First, we need to square L6.
    | [2nd] | [ 6 ] | [x^2] | [STO>] | [2nd] | [ 6 ] | [ENTER] |Second, calculate the quadratic mean
    | [2nd] | [x^2] | [2nd] | [STAT] | [LEFT] | [ 5 ] | [2nd] | [ 6 ] | [ ) ] | [ / ] | [2nd] | [STAT] | [RIGHT] | [ 3 ] | [ 2nd ] | [ 6 ] | [ ) ] | [ ) ] | [ENTER] |
    Screenshot TI-84 Quadratic Mean Example solution is 164.1

To solve by hand use the quadratic mean formula.
Quadratic mean ti-83 | ti-84 problem \sqrt{\frac{92^2 188^2 152^2 202^2}{4}}

Congratulations, you have calculated the quadratic mean using your TI-83 or TI-84 calculator.

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Last Modified on September 7, 2013 by JoeStat

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