Match each estimating technique with the correct description. Question 5 options: A cost-estimating method that uses values, or attributes, of a previous project that are similar to the current project. Values and attributes of the projects may include but are not limited to: scope, cost, budget, duration, and measures of scale (e.g., size, weight). A method of estimating a component of work. The cost of individual work packages or activities is estimated to the greatest level of specified detail. The detailed cost is then summarized or "rolled up" to higher levels for subsequent reporting and tracking purposes. The cost and accuracy of this type of cost estimating are typically influenced by the size or other attributes of the individual activity or work package This cost estimate technique considers uncertainty and risk and uses estimates to define an approximate range for an activity's cost: The cost of the activity, based on realistic effort assessment for the required work and any predicted expenses, the cost based on analysis of the best-case scenario for the activity,and the cost based on analysis of the worst-case scenario for the activity. This estimation method uses a statistical relationship between relevant historical data and other variables (e.g