Statistical PERT® (SPERT®) is a freely licensed, probabilistic, estimation technique that uses the built-in statistical functions of Microsoft Excel. Use Statistical PERT to estimate uncertainties with bell-shaped risk properties, like: task duration, work effort, revenue, expenses, agile story points, project portfolios, event attendance, and more.
There is nothing to install. Just download a Statistical PERT example workbook or template, then open the downloaded files with Microsoft Excel 2010, Excel 2013 or Excel 2016.
All Statistical PERT downloads are FREE to use, modify and share! No registration, no macros, no adware, no cost, and no hassle!
Since 2015, thousands of project managers, business managers, Scrum Masters, agile coaches, university professors, college students, and other business professionals from dozens of countries around the world have downloaded and used Statistical PERT to estimate uncertain future outcomes. The Project Management Institute (PMI) offers Statistical PERT templates to its membership through its sister site, ProjectManagement.com, along with published articles on Statistical PERT like this one and this one (note: you must be a PMI member to read these articles).
Important note: All SPERT download files are distributed under the GNU General Public License published by the Free Software Foundation. You may redistribute SPERT files and/or modify them under the terms of version 3 of that license, or (at your option) any later version. These files are freely available for downloading in the hope that they will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.