Given a discrete data set, the calculator calculates the mean, variance, and standard deviation of a sample or a population and shows all the intermediate steps of calculations.

1. Download the ZIP file of this repository.
2. Upload the /standard-deviation-master/ folder to the /wp-content/plugins/ directory.
3. Activate the Standard Deviation plugin through the "Plugins" menu in WordPress.

• Add the shortcode [ci_standard_deviation] to your page, post or sidebar.
• Or add the following code: <?php display_ci_standard_deviation(); ?> to your template where you would like the Standard Deviation to appear.

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