46. Estimate costs for a construction project using the following data:

Activity	Estimated Cost ($)
Site Preparation	100,000
Foundation	150,000
Framing	200,000
Roofing	120,000

Requirements:

• Calculate the total estimated cost for the project.
• Present the estimation process in a table.
• Explain the methodology used for cost estimation.
• Identify potential sources of uncertainty in the estimation.
• Provide strategies for managing cost uncertainties.