Answer: Analogous estimate
Step-by-step explanation:
Based on the above scenario, the technique that is been used is the analogous estimating.
Analogous estimating is when former or past projects are used so as to make an estimation on the cost or time frame of a current project.
Analogous estimating uses comparision to previous projects done. Therefore, since the project done is being estimated based on past experience, it is referred to as analogous estimating.