The phrase "average lower than" is correct and usable in written English.
It can be used when comparing an average value to another value, indicating that the average is less than that value.
Example: "The average lower than the national standard suggests a need for improvement in the region's performance."
Alternatives: "below average" or "less than average".
Estimated willingness to pay among vulnerable groups who most need insurance is, on average, lower than commercially viable rates.
Conclusions: Serum HCB concentrations were on average lower than that of the general U.S. population and associated with failed implantation among women undergoing IVF.
For S MIS, the variance estimates were strongly biased in each trait, and the EBV accuracies were, on average, lower than in the other three treatments.
Values clearly decrease toward the fault core, even in the transition zone and are in average lower than effective Young's moduli in the damage zone.
The satellite PAR retrievals are on average lower than modeled PAR and exhibit better agreement with SCAN and SURFRAD network measurements.
This method has time complexity linear in the number of players, but has an approximation error that is, on average, lower than Owen's.
A pitcher who had a career batting average lower than his temperature and who had blown his chances as a starter helped put the Mets in a hole early.
Municipal utilities serve about 22percentt of electricity customers in California — including in Sacramento, Los Angeles and Santa Clara — for rates that are, on average, lower than investor-owned utilities.
As for Pierce, he had to refer back to his second year in the league — 1999-2000 — for a scoring average lower than his 19.8 points a game this season.
Measurements of dihedral angles at grain boundary thermal grooves were used to determine that the energies of the growing boundaries are, on average, lower than the energies of the shrinking boundaries.
Since Sept. 14, when the Mets lost the opener of a three-game series against Philadelphia that kick-started this 4-10 stretch, a starting pitcher has lasted as many as six innings only four times and only one reliever — Aaron Heilman (2.00) — has an earned run average lower than Scott Schoeneweis's 4.50.
