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Use "variabilities" in a sentence
"As shown recently by Benjamin Santer et al., one must average over at least 17 years of data to reduce annual or even decadal variabilities to detect overall trends."
"The VARK model is popular but I suspect many other learning styles exist as do variabilities in their combinations amongst individuals."
"After all, variabilities in quality do not bother YouTube, Flickr, SlideShare and any number of other web 2.0 sites."