50 Statistical cost estimating techniques (based upon history), are called _____ estimates and are a _____ approach.A. Definitive, bottom up.B. Analogy, top down.C. Parametric, bottom up.D. Parametric, top down.E. Analogy, bottom up.
题目
50 Statistical cost estimating techniques (based upon history), are called _____ estimates and are a _____ approach.