The phrase "adequate variation" is correct and usable in written English.
It can be used when discussing the sufficiency or appropriateness of differences or changes in a particular context, such as research, design, or analysis.
Example: "The study showed that there was adequate variation in the sample population to draw meaningful conclusions."
Alternatives: "sufficient diversity" or "appropriate variation".
A methodology of multiobjective design optimization of ceramic metal composite plates with functionally graded materials, with properties varying through the thickness direction, obtained by an adequate variation of volume fractions of the constituent materials, is presented in this paper.
The discrepancy in complex permittivity as a result of enhanced capacitor was achieved for the detection and determination of random glucose concentration levels using a unique variation of capacitor that indeed results in an adequate variation of the resonance frequency.
She doubts whether, even given adequate variation, natural selection can account for the exuberant variety of life, because (p. 77, 90) she cannot see how all the varied features of living beings are related to surviving in order to reproduce.
These variables were also expected to show adequate variation across the population.
French-speaking patients were selected between 30 and 75 years of age, to ensure adequate variation in degrees of multimorbidity.
To control for multivariate effects, a logistic regression model was also fit for FF/N and HP, the two dependent variables for which adequate variation existed.
This result implied that the Beringian population must have remained small throughout its period of residence, which is more consistent with the archeological record, but is more problematic for maintenance of adequate genetic variation to characterize the subsequent founding population of the Americas.
The first reason is lack of adequate genetic variation.
Adequate genetic variation was observed for resistance to both pathogens.
Specifically, only items showing adequate response variation, defined as symptom presence between 30 and 70% were retained.
Although the Mongolian camel census size has severely declined over the past 20 years, our analyses suggest that there still exists a stable population with adequate genetic variation for continued sustainable utilization.
