ﺑﺮﺁوﺭﺩ ﺗﻘﺮﯾﺒﯽ 
Approximate estimation

ﺑﺮﺁوﺭﺩی ﺍﺳﺖ ﮐﻪ ﭼﻮﻥ ﺑﺮ ﺍﺳﺎﺱ ﺍﻃﻼﻋﺎﺕ ﻣﻘﺪﻣﺎﺗﯽ ﻣﯽﺑﺎﺷﺪ، ﺩﻗﯿﻖ ﻧﯿﺴﺖ.