-高考數(shù)學二輪復習第1部分重點強化專題專題3概率與統(tǒng)計第7講回歸分析獨立性檢驗課件理

題型1回歸分析題型2獨立性檢驗三年真題驗收復習效果欄目導航專題限時集訓回歸分析題型1

獨立性檢驗題型2

驗收復習效果三年真題︳

團Tiffany，a16-year-oldgirl，wasveryshy.LastSeptember，herbestfrien“IwasreallysadthemomentIheardthebadnewsandIdidn'tknowwhattodo，”Tiffanyrecalled.“Ishutmyselfinmyroomforawholeweek.ItwasthenthatmyaunttookmetoasportscluboneSaturdayandIsawsomanyyoungpeopleplayingdifferentkindsofsportsthere.Isignedupforabeginner'scourseinvolleyballandsincethenIhavebeenplayingthissport.NowIpracticetwiceaweekthere.ItiswonderfulplayingsportsinthisclubandIhavemadelotsoffriendsaswell.2”Themostbasicaimofplayingsportsisthatyoucanimproveyourhealthevenifyouarenotverygoodatsports.Besides，youcangettoknowacircleofpeopleatyouragewhileplayingsports.3Sinceshejoinedthesportsclub，sIgotusedtothelifehere.AndnowIknowlotsof(5)_________here.Forexample,whenImeetmyfriendonthestreet,Iusually(6)_________himlikethis,“Hey,whereareyougoing?”Inourcountryifsomeoneasksthis,peoplemayget(7)_________butinthiscountrypeoplewon't.Ofcourse,therearesomeotherinterestingthingshere.I'lltellyouaboutthemnexttime.hehasopenedupherselfandnowshehasbecomeveryactiveandenjoysmeetingandtalkingwithothers.1．It'spoliteforgirlstokisseachotheronthesideoftheface.salsobecomemoreconfident.團圓圓一家在臺灣可受歡迎了。每天，小朋友們排著長隊，等著跟它們合影留念。從“排著長隊”體現(xiàn)出每天喜歡它們的人不計其數(shù)，特別受選D.A.根據(jù)同類項合并法則,與不是同類項,不能合并,故本選項錯誤;B.根據(jù)算術(shù)平方根的定義,=3,故本選項錯誤;C.根據(jù)同底數(shù)冪的乘法a?a2=a3,故本選項錯誤;D.根據(jù)積的乘方,(2a3)2=4a6,故本選項正確.歡迎。從“合影留念”體現(xiàn)出大家都想