The phrase "average space of" is correct and usable in written English.
It can be used when discussing measurements, dimensions, or quantities in a general sense, often in contexts like mathematics, statistics, or physical space.
Example: "The average space of the rooms in this building is 250 square feet."
Alternatives: "mean area of" or "typical space of".
But if we assume an average space of 0.5 square metres each – and that children take up half as much space as adults – then it could go like this: There are 5.2 billion adults and 1.9 billion children in the world.
Dawkins and Hardie (1989) looked at the average space required by a hen to carry out basic needs and found that a bird requires an average space of 198 square inches to turn, stretching wings requires 138 square inches, and flapping wings requires 290 square inches.
Secondly, SNPs were chosen with an average space of 50 bp.
Our characterization of the japonica transcriptome started with custom full-genome tiling microarrays containing 12,254,374 36-mer oligonucleotide probes, with an average space of 10 nucleotides (nt) between adjacent probes.
One hundred seventeen SSR markers with average space of 11.5 cM were used for the preparation of F2 population genotyping which was a base-map of 1710.5 cM length.
The total length of the RH map was 1560.7 cR, indicating an average space of 3.5 cR/loci and an average distance of 509 kb/cR (the physical length used herein was estimated from the cumulative size of the contigs).
Our panel of polymorphisms has an average spacing of 3.2 kb and an average minor allele frequency of 24%.
Neural recording sites, separated by an average spacing of 50 μm, are located at the tip of each shank.
These coherent TBs, with an average spacing of 25 nm, were engineered approximately parallel to foil surfaces.
The initial position estimation vector is set to place each node 10 feet apart -- the average spacing of motes dropped from the plane.
