## Mean & Standard Deviation Calculator for Frequency Table & Grouped Data

Formula for Sample Data Formula for Population Data

## Running a PHP script from Command Line Shell | How to

To run a php script from the command line follow this procedure: Simply run the CMD command in windows and type the following command: :location\to\the\running\>php.exe -f “c:\location\of\php\scriptfolder\myscript.php” Ensure the local server is up and running – fire you WAMP/ XAMP or whatever bundle you are using. For WAMP server – the php.exe file is located […]

## Free Green PSD Web Layout | Knowpapa Giveaway of the Week

The Free Green PSD Web Layout giveaway of the week by designer/author: Sangita Chaudhary License You are granted the use license which enables you to use this template FREE of charge. Because this is released under GPL, You can modify the theme in any way you like and even use it in commercial projects. Attribution […]

## Line of Best Fit Calculator + Trend Line Graphing Tool

Enter one data set in the format x,y per line: For example: 4,5 5,6 8,7 3,4 5,11 11,13 14,11 Intercept(a): Slope(b): Line of Best Fit :(y=a+bx) About Linear Regression and Trend Line Formulating a equation for the line of best fit for two sets of variables allows us describe a relationship between the two variables expressed in the form of a […]

## Moving from HTML4 to HTML5 | Tips & Caveats

HTML5 is the result of ironing out of differences between all major browser-vendors. As more browsers gear up to support many features of HTML5 – it may be a ripe time to switch over to HTML5. Why switch to HTML5? I can hear you ask, Why change if HTML5 is fully backward compatible with HTML4 […]