摘要
In this paper attempts are made at answering the problems on the statistical properties of activity flow time in PERT raised by the late famous mathematician Hua Loo-keng.
In this paper attempts are made at answering the problems on the statistical properties of activity flow time in PERT raised by the late famous mathematician Hua Loo-keng.
基金
the Special Funds for Major State Basic Research Projects(G1 9990 3 2 8)and Zhejiang Provincial Natural Science Foundation of China(1 0 0 0 0 2 )
