Which statement is true of a oWhich statement is true of analogous estimates? 1. Their main disadvantage is that they cost more than other techniques. 2. They are the only technique which do not require expert judgement. 3. They are the only technique which do not require expert judgement. 4. They use project characteristics in a mathematical model to estimate project costs.rder of magnitude estimate? 1. It is used to allocate money into an organization's budget. 2. It provides an estimate of what a project will cost. 3. Its timeframe is always less than a year prior to project completion. 4. It is a type of estimate that is done in the final stages of a project