Search for eResources by keyword You can search for your grade, subject, and topic and refine by language and type. 1 eRESOURCES RelevancePopularityLatestA to Z RelevancenoneRelevancenonePopularityfield_popularityLatestfield_approval_dateA to Ztitle X REFINE BY Clear all Grade X Remove Grade 11 filter Grade 11 By Subject X Remove Mathematics filter Mathematics Filter by subtopic: X Remove Variance and Standard deviation filter Variance and Standard deviation LANGUAGE X Remove English filter English Back FILTER eRESOURCES Measures of spread: range, variance & standard deviation Discusses the three most common measures of... Free