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1、下面是20名候選隊(duì)員的身高情況(單位:m)1.321.331.441.451.461.461.471.471.481.481.491.501.511.521.521.521.521.521.521.52根據(jù)以上數(shù)據(jù),你認(rèn)為參賽隊(duì)員身高是多少比較合適?五(4)班要選10名同學(xué)組隊(duì)參加集體舞比賽。哪十名隊(duì)員的身高在1.475M左右?1.321.331.441.451.461.461.471.471.481.481.491.501.511.521.521.521.521.521.521.521.321.331.441.451.461.461.4
2、71.471.481.481.491.501.511.521.521.521.521.521.521.52按照中位數(shù)的標(biāo)準(zhǔn),哪十名隊(duì)員的身高比較合適?1.321.331.441.451.461.461.471.471.481.481.491.501.511.521.521.521.521.521.521.521.321.331.441.451.461.461.471.471.481.481.491.501.511.521.521.521.521.521.521.52哪十名隊(duì)員的身高在1.52M左右?1.321.331.441.451.46
3、1.461.471.471.481.481.491.501.511.521.521.521.521.521.521.521.321.331.441.451.461.461.471.471.481.481.491.501.511.521.521.521.521.521.521.521.52是這組數(shù)據(jù)的眾數(shù)5.04.95.35.24.75.24.85.15.35.24.85.04.55.14.95.14.75.04.85.15.04.84.95.14.55.14.65.14.75.15.05.15.14.95.05.15.25.14.65.0
4、五(6)班全體同學(xué)左眼視力情況如下:真金不怕火煉(1)根據(jù)上面的數(shù)據(jù)完成下面的統(tǒng)計(jì)表。左眼視力4.54.64.74.84.95.05.15.25.3人數(shù)左眼視力4.54.64.74.84.95.05.15.25.3人數(shù)2234471242(2)這組數(shù)據(jù)中的中位數(shù)是(),眾數(shù)是()。5.05.1(3)你認(rèn)為哪一個(gè)數(shù)據(jù)代表全班同學(xué)視力的一般水平比較合適?(4)視力在4.9及以下為近視,五(6)班同學(xué)左眼的視力如何?對(duì)他們有什么建議?①12,15,30,18,30②40,50,40,65,65,100③1,2,3,4,5,6,7挑戰(zhàn)無處不在結(jié)合
5、本節(jié)內(nèi)容,提出數(shù)學(xué)問題我能行!!!1、某商店上周銷售各種尺碼男式皮鞋的情況如下表在這組數(shù)據(jù)中,哪種尺碼是眾數(shù)?這個(gè)眾數(shù)對(duì)商家進(jìn)貨有幫助嗎?說說你的想法尺碼/cm2424.52525.52626.527數(shù)量/雙4153448291852、從甲、乙、丙三個(gè)廠家生產(chǎn)的同一種產(chǎn)品中各抽取8件產(chǎn)品,對(duì)其中使用壽命跟蹤調(diào)查,結(jié)果如下(單位:年)甲:3,4,5,6,8,8,8,10乙:4,6,6,6,8,9,12,13丙:3,3,4,7,9,10,11,12三個(gè)廠家在廣告中都稱該產(chǎn)品的使用壽命是8年,請(qǐng)根據(jù)結(jié)果判斷廠家在廣告中分別運(yùn)用了平均數(shù)、眾數(shù)、中
6、位數(shù)中的哪一種集中趨勢(shì)的特征數(shù)3、調(diào)查本班同學(xué)左右眼的視力,找出這組數(shù)據(jù)的眾數(shù)作業(yè)超市(請(qǐng)同學(xué)們選擇自己感興趣的題來完成!)