The phrase "a challenging range of" is correct and usable in written English.
It can be used to describe a variety of tasks, topics, or subjects that are difficult or demanding in nature.
Example: "The course offers a challenging range of subjects that will test the students' abilities and push them to excel."
Alternatives: "a difficult array of" or "a tough selection of".
We examine growth and gene expression responses to a challenging range of concentrations of the metal copper.
Whilst the dataset used in this study was engineered to include a challenging range of mutations and efforts were made to simulate the error profile of Illumina sequencing technology, it is nevertheless a simplified representation of real-world data.
Given such a challenging range of clinical phenotypes, it is not altogether surprising that animal models of schizophrenia based on diverse human symptoms, or resulting from serendipitous clinical observation, have yielded few insights and no new therapies [ 4].
More generally, quotation presents semanticists with a particularly challenging range of puzzles.
Since that time, ventilation standards have been issued in several countries around the world and have dealt with an increasingly complex and challenging range of issues as research on indoor air quality and the state of knowledge of building performance have progressed.
And finally, in reproachful silence, Frightening Redneck Sex Massacre would be cued up and everyone could just get on with enjoying the complex, nay challenging range of visual motifs.
Investigating the cause of symptoms among such a large workforce is logistically challenging, and a range of case definitions have therefore previously been developed and utilized [Zacharisen et al., 1998; Fox et al., 1999; Hodgson et al., 2001; Dangman et al., 2002; Weiss et al., 2002; Gupta and Rosenman, 2006; Robertson et al., 2007].
Measuring filament on rates has been technically challenging, and a range of values has been reported.
Colleges in close vicinity should stop competing with each other to offer the same low-grade courses and instead collaborate on a wider range of challenging, modern subjects.
As commissioning editor of documentaries since 2009, Moore has led her team in providing a wide range of challenging and often acclaimed documentaries to all four BBC TV channels.
"This work is the first time anyone has built a single, general learning system that can learn directly from experience to master a wide range of challenging tasks, in this case a set of Atari games, and to perform at or better than human level," said Demis Hassabis, a former neuroscientist and founder of DeepMind Technologies, which was bought by Google for £400m in 2014.
