The phrase "means of sum" is not a complete sentence and does not make sense on its own.
It is possible that you may have intended to use the phrase "by means of" which means "by using" or "through the use of." This phrase is commonly used in written English. Example: By means of intense studying and dedication, I was able to achieve a high score on the exam.
But sometimes, like quoting a lyric from a song or a line from a play, it's intended as a means of summing up the essence of the set.
Immunogenicity was assessed by comparing the geometric means of summed interferon-γ ELISPOT responses to malaria peptides.
Scores for the three dimensions and a total score are calculated as means of summed scores.
The mean value of retention shift is set to follow the mean of sum of interface traps and oxide traps: μ d = ( A t · N a IT + B t · N a OT ) · ln ( 1 + t ).
The Gmean OR, mean of sum of risk alleles and mean cumulative GRS values were compared between groups with Student t tests.
They had also more often and for longer periods been in involuntary care according to the Mental Health Act during the last hospital period (mean of sum 25.7 days vs. 11.9 days, independent samples t-test, F = 40,59, p < 0.001).
In two different cohorts of pregnant Californians sampled in 2008 2009 and 2011 2012, Zota et al. found that the geometric mean of sum of five tetra- to hepta-chlorinated congeners decreased 25% (range −68 to 7%), whereas PCB 180 declined 71% (range −141 to −22%) between the earlier and later cohorts.
Traveling ratios (TR) were calculated from the mean of summed transcript RPM means for each transcription group in an area representing the promoter (p) (−0.3/0.3 kbp) and downstream body (b) (0.3/2.25 kbp) of the transcript, TR = (b/p).
The mean of summed score for answers to questions 1 – 3 in the questionnaire was 2.9 (range 0 – 7) for the dogs with IDD and 0.4 (range 0 – 6) for the dogs free of IDD.
