Which of the following statements are true regarding estimation techniques?
A. Three-point estimating is a method of estimating based on three types of estimates: conservative, pessimistic, optimistic
B. Analogous estimation is an estimating technique that uses statistical relationship between historical data and other variables to calculate an estimate for activity parameters, such as duration and cost
C. Parametric estimation is an estimating technique that uses the historical information from the previous similar activity as the basis for forecasting. Analogous estimation is a form of expert judgment
D. Bottom-up estimating is a method of estimating a component of work, where the work is decomposed into greater details
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