You are hired as a contract project manager for Dreams Unlimited Inc.

Parametric modeling is an estimation technique that uses historical data and mathematical formulas to calculate estimates based on the relationship between variables. In this case, the variables are the number of servers and clients, and the hours required to install them. By multiplying the number of servers by 15 hours, and the number of clients by 10 hours, you can get an estimate of the total hours needed for the project. This technique is useful when the project has a high level of similarity to past projects, and the data is reliable and scalable. References: Business AnalysisTechniques - ECBA, CCBA, CBAP Endorsed, Section 8.2: Estimation Techniques; Certification of Capability in Business Analysis (CCBA®) - Simplilearn, Module 5: Planning and Monitoring, Lesson 5.3: Estimation; Intro to the Certification of Capability in Business Analysis (CCBA®) - Pluralsight, Course Overview, 1:40-2:00.