The phrase "a sufficient class of" is correct and usable in written English.
It can be used when discussing a group or category that meets a certain standard or requirement in a specific context.
Example: "In our study, we identified a sufficient class of organisms that exhibit the desired traits for further research."
Alternatives: "an adequate category of" or "a suitable group of".
In this paper we argue that for theories to be useful in practice, they should give sufficient understanding of a sufficiently large class of cases, without having to be universal or complete.
Finding cover for Anderson is more problematic, for beyond Graham Onions there is no swing bowler of sufficient class to take the new ball.
The large datasets generated by studies such as the Type 1 Diabetes Genetics Consortium are crucial for the generation of sufficient class I data for disease association studies (48).
The number of 2,500 classes was chosen in such a way that for every region in Germany that was supposed to be represented in the survey, a sufficient number of classes was evident.
The inspector general complained that of the examinations provided to him by the agency, "not a single question called upon a student to demonstrate a sufficient mastery of the class content to achieve the purpose of the training".
A sufficient coefficient of this class is determined.
Hitherto, the exposure classification designs have been strongly motivated by a desire to generate a sufficient number of exposure classes for the determination of a potential exposure response relationship.
Table 3 Regulations regarding special fees in Styria Special fees (StKAG) Public hospitals may run a special class in addition to the general class if the hospital provides a sufficient number of beds in the general class, particularly for those who cannot be denied hospital care.
In this article, we present a necessary condition and a necessary and sufficient condition for a class of functions to be completely monotonic.
