The phrase "a threshold of three" is correct and usable in written English.
It can be used in contexts where a specific limit or level is being defined, such as in statistics, research, or decision-making criteria.
Example: "In our study, we established a threshold of three to determine significant results."
Alternatives: "a limit of three" or "a benchmark of three".
The template rise time was 1 ms, decay time 6 ms, baseline 10 ms, length 30 ms and a threshold of three.
A threshold of three fibers ensured that the average size of the largest connected component of the network was 90 across all subjects.
A threshold of three or more discrepancies showed 76% sensitivity and 68% specificity for identifying retracted reports in this subgroup.
(D ) Simulations with 12 cells on the track and a threshold of three cells generate results similar to Gupta et al. (2012).
WMHs in the mask were automatically identified using a threshold of three standard deviations above the mean FLAIR signal intensity (King et al., 2013).
A threshold of three or more studies was used to establish the presence of a potential association between screen-viewing and a particular factor.
With a threshold of five hundred thousand dollars, fewer than one million taxpayers would be affected.
Members of Israel's parliament are elected through proportional representation, and there is a threshold of four seats (or 3.25% of the vote) to enter parliament.
Using a threshold of ten mutations per megabase (dashed line), patients are classified as having a low (light blue), high (dark blue) or heterogeneous tumour mutational burden (orange).
In the elegant theoretical model Granovetter proposed, riots were started by people with a threshold of zero — instigators willing to throw a rock through a window at the slightest provocation.
The two sides started far apart: Ms. Quinn proposed a rule that would apply to companies with 50 or more workers; advocates wanted a threshold of five.
