Mean--Median--Mode-&-Range均值-中位数-模式与范围

Mean,Median,Mode&RangeByMonicaYuskaitisCopyright©2000byMonicaYuskaitisVocabularyReview•Sum–theanswertoanadditionproblem.•Addend–thenumbersyouaddedtogethertogetthesum.6+9=15Copyright©2000byMonicaYuskaitisDefinitionMeanMeansAverageCopyright©2000byMonicaYuskaitisDefinition•Mean–theaverageofagroupofnumbers.2,5,2,1,5Mean=3Copyright©2000byMonicaYuskaitisMeanisfoundbyeveningoutthenumbers2,5,2,1,5Copyright©2000byMonicaYuskaitisMeanisfoundbyeveningoutthenumbers2,5,2,1,5Copyright©2000byMonicaYuskaitisMeanisfoundbyeveningoutthenumbers2,5,2,1,5mean=3Copyright©2000byMonicaYuskaitisHowtoFindtheMeanofaGroupofNumbers•Step1–Addallthenumbers.8,10,12,18,22,268+10+12+18+22+26=96Copyright©2000byMonicaYuskaitisHowtoFindtheMeanofaGroupofNumbers•Step2–Dividethesumbythenumberofaddends.8,10,12,18,22,268+10+12+18+22+26=96Howmanyaddendsarethere?Copyright©2000byMonicaYuskaitisHowtoFindtheMeanofaGroupofNumbers•Step2–Dividethesumbythenumberofaddends.6)96sum#ofaddends1636663Copyright©2000byMonicaYuskaitisHowtoFindtheMeanofaGroupofNumbersThemeanoraverageofthesenumbersis16.8,10,12,18,22,26Copyright©2000byMonicaYuskaitisWhatisthemeanofthesenumbers?7,10,1611Copyright©2000byMonicaYuskaitisWhatisthemeanofthesenumbers?2,9,14,2713Copyright©2000byMonicaYuskaitisWhatisthemeanofthesenumbers?1,2,7,11,198Copyright©2000byMonicaYuskaitisWhatisthemeanofthesenumbers?26,33,41,5238Copyright©2000byMonicaYuskaitisDefinitionMedianisintheMiddleCopyright©2000byMonicaYuskaitisDefinition•Median–themiddlenumberinasetoforderednumbers.1,3,7,10,13Median=7Copyright©2000byMonicaYuskaitisHowtoFindtheMedianinaGroupofNumbers•Step1–Arrangethenumbersinorderfromleasttogreatest.21,18,24,19,2718,19,21,24,27Copyright©2000byMonicaYuskaitisHowtoFindtheMedianinaGroupofNumbers•Step2–Findthemiddlenumber.21,18,24,19,2718,19,21,24,27Copyright©2000byMonicaYuskaitisHowtoFindtheMedianinaGroupofNumbers•Step2–Findthemiddlenumber.18,19,21,24,27Thisisyourmediannumber.Copyright©2000byMonicaYuskaitisHowtoFindtheMedianinaGroupofNumbers•Step3–Iftherearetwomiddlenumbers,findthemeanofthesetwonumbers.18,19,21,25,27,28Copyright©2000byMonicaYuskaitisHowtoFindtheMedianinaGroupofNumbers•Step3–Iftherearetwomiddlenumbers,findthemeanofthesetwonumbers.21+25=462)4623medianCopyright©2000byMonicaYuskaitisWhatisthemedianofthesenumbers?16,10,7107,10,16Copyright©2000byMonicaYuskaitisWhatisthemedianofthesenumbers?29,8,4,11,19114,8,11,19,29Copyright©2000byMonicaYuskaitisWhatisthemedianofthesenumbers?31,7,2,12,14,19132,7,12,14,19,3112+14=262)26Copyright©2000byMonicaYuskaitisWhatisthemedianofthesenumbers?53,5,81,67,25,786053+67=1202)1205,25,53,67,78,81Copyright©2000byMonicaYuskaitisDefinitionModeisthemostPopularCopyright©2000byMonicaYuskaitisDefinition•Alamode–themostpopularorthatwhichisinfashion.Baseballcapsarealamodetoday.Copyright©2000byMonicaYuskaitisDefinition•Mode–thenumberthatappearsmostfrequentlyinasetofnumbers.1,1,3,7,10,13Mode=1Copyright©2000byMonicaYuskaitisHowtoFindtheModeinaGroupofNumbers•Step1–Arrangethenumbersinorderfromleasttogreatest.21,18,24,19,1818,18,19,21,24Copyright©2000byMonicaYuskaitisHowtoFindtheModeinaGroupofNumbers•Step2–Findthenumberthatisrepeatedthemost.21,18,24,19,1818,18,19,21,24Copyright©2000byMonicaYuskaitisWhichnumberisthemode?29,8,4,8,1984,8,8,19,29Copyright©2000byMonicaYuskaitisWhichnumberisthemode?1,2,2,9,9,4,9,1091,2,2,4,9,9,9,10Copyright©2000byMonicaYuskaitisWhichnumberisthemode?22,21,27,31,21,322121,21,22,27,31,32Copyright©2000byMonicaYuskaitisDefinitionRangeisthedistanceBetweenCopyright©2000byMonicaYuskaitisDefinition•Range–thedifferencebetweenthegreatestandtheleastvalueinasetofnumbers.1,1,3,7,10,13Range=12Copyright©2000byMonicaYuskaitisHowtoFindtheRangeinaGroupofNumbers•Step1–Arrangethenumbersinorderfromleasttogreatest.21,18,24,19,2718,19,21,24,27Copyright©2000byMonicaYuskaitisHowtoFindtheRangeinaGroupofNumbers•Step2–Findthelowestandhighestnumbers.21,18,24,19,2718,19,21,24,27Copyright©2000byMonicaYuskaitisHowtoFindtheRangeinaGroupofNumbers•Step3–Findthedifferencebetweenthese2numbers.18,19,21,24,2727–18=9Therangeis9Copyright©2000byMonicaYuskaitisWhatistherange?29,8,4,8,1929–4=254,8,8,19,29Copyright©2000byMonicaYuskaitisWhatistherange?22,21,27,31,21,3232–21=1121,21,22,27,31,32Copyright©2000byMonicaYuskaitisWhatistherange?31,8,3,11,1931–3=283,8,11,19,31Copyright©2000byMonicaYuskaitisWhatistherange?23,7,9,41,1941–7=347,9,23,19,41Copyright©2000byMonicaYuskaitisCredits•ClipartfromClickArt125,000,T/MakerCompanyofBroderbundSoftware,Inc.Copyright©2000byMonicaYuskaitisCredits•ClipartfromClickArt125,000,T/MakerCompanyofBroderbundSoftware,Inc.