The phrase "a approximate number" is not correct.
It should be "an approximate number." You can use it when referring to a number that is not exact but close to a certain value.
Example: "The approximate number of attendees at the event was around 200."
Alternatives: "an estimated number" or "a rough number."
The A) approximate numbers of breeding R. arvalis females, B) number of full-sib families used per population, C) coordinates (N, E), D) altitude (m), E) forest canopy closure, F) mean ± SD pond pH, G) likely acidification history, H) average temperature (°C) during March - July 2009, I) predator density (per five sweeps), J) amphibian larval density (per five sweeps), and K) pond size (m3).
The method assumes that each observed value is an approximate number (or a fuzzy number) and the true value is found in the support of the membership function.
We then defined a circle of diameter, D = 2 × n π × a, where n is an approximate number of HA trimers in the contact patch, and then identified the positions and the total number of HAs within the circle, n actual.
Herewith, the full track listing from the project -- and by way of a referendum of sorts, I included an approximate number of cover versions performed by Nirvana fans on Youtube.
The sample size calculations we performed provide an approximate number of replicates for a given set of criteria.
Furthermore, Berteletti et al. [ 7] argues for an approximate number system that is a logarithmic representation first, with numerate children and adults acquiring greater precision, and thus a linear representation.
A popular suggestion states that an evolutionarily grounded analogue magnitude representation, also called an approximate number system (ANS) or 'number sense' underlies human mathematical knowledge.
Evolution may have endowed us with an approximate number line, but it takes a system of symbols to make numbers precise — to "crystallize" them, in Dehaene's metaphor.
The duration of an adaptation in hours was converted to an approximate number of generations based on the lysis time of the phage; duration (in generations, G) is indicated by a _G following the strain designation.
