Werden die Resultate sämmtlicher Versuche zusammengefasst, so ergibt sich zwischen der Anzahl der Formen mit dem dominirenden und recessiven Merkmale das Durchschnitts-Verhältniss 2,98 : 1 oder 3 : 1.
Once the results of all the experiments are drawn together, an average proportion of 2.98 : 1, or 3 : 1, emerges between the quantities of forms with the dominating and the recessive trait.
In the manuscript, the sentence originally started in the singular (Wird das), which Mendel then corrected.
drawn together = zusammengefasst This is quite a vague term in German, that can also mean “to summarize”. The reported result of 2.98 is identical to the result one gets by adding the ratios reported from individual experiments in the preceding and dividing them by the number of experiments carried out.
proportion = Verhältniss See p. 3, s. 8.
quantities = Anzahl See p. 3, s. 8.
forms = Formen See p. 3, s. 8.
dominating = dominirend See p. 10, s. 14.
recessive = recessiven See p. 10, s. 14.