EmSumming the total of WBS tasks to find the total cost is knows as__________________ estimating. Select one: 1. Top-down 2. Parametric 3. Bottom-up 4. Analyticalerson has recently been assigned as the project manager for construction of an Olympic-sized swimming pool. She is about to begin the budgeting process. What does she need for this process? Select one: 1. Cost estimates and supporting detail 2. A parametric model used to arrive at the costs submitted 3. EAC and BAC 4. Cost estimates and project schedule