Approximate estimates can be categorized into three main types: rough estimates, which provide a quick and general idea of costs or time; parametric estimates, which use historical data and statistical relationships to forecast outcomes; and analogous estimates, which rely on the outcomes of similar past projects to inform current projections. Each type serves different purposes and levels of accuracy, depending on the project's requirements and available data.
The approximate value of something is an estimate.
An estimate is an educated guess. Approximate and round off mean "about".
guess
If an estimation, or estimate, is a guess, an approximate estimation is a rougher guess.
about, guess
It is an estimate
Estimate
Estimates are never exact. They are a best guess at what the answer is. They are always going to be approximate.
Make a very approximate estimate.
The 2010 estimate is 1,180,166,000
It's pretty much like an estimate.
An estimate is an approximate calculation of the value, number, quantity, or extent of something based on available information. It is not an exact measurement but rather a rough approximation.