The phrase "average a difference" is correct and usable in written English.
It can be used in contexts where you are calculating the mean of differences between values, such as in statistical analysis or data comparison.
Example: "To find the overall trend, we need to average a difference between the two sets of data."
Alternatives: "calculate the mean of the difference" or "find the average of the difference".
On average a difference of 1.8 log units between both methods was observed for the predicted log Kaw values.
Schmidt and his colleagues concluded that 2007 is the warmest year on record for the Northern Hemisphere, with a 1.9-degree-Fahrenheit rise over the 1951-80 average, a difference he called "quite significant". In the Arctic, the NASA scientists found, last year's average was 4.1 degrees higher than the 1951-80 baseline.
The intervention group received on average 88 home visits compared with the control group receiving 158 visits on average, a difference of 78 visits on average.
On an average, a difference of 1.65 (on the 0 10 scale for transformed data) was seen between the least and most generous raters.
Upon regression analysis, among subjects not on ART, heavy alcohol consumption was associated with a lower CD4 cell count, on average a difference of 49 cells/mm.
In Denmark the average efficiency was closest to the Finnish average, with a difference of only 0.00 0.09 efficiency units.
When the basis for comparison of "quality" is 50 or even 100 points difference in a segment of the SAT score continuum already well above the national average -- a difference that is hard to argue has or can differentiate our high-achieving alums across occupations from the average of our graduates -- one has to wonder if we have lost our way in the weeds of selectivity and comparative fairness.
That translates (on average) to a difference of $450,000 over the course of a lifetime.
Initially, school type appeared to explain about 7% of the differences seen in GCSE results (on average a grade difference in English, science or maths).
Each measurement was repeated and was averaged if a difference was documented.
The proportion of genes expressing the reference allele was on average 50.76 %, a difference of 3.41 %.
