[img]ct_gre6image048[/img]In a set of measurements, the range is defined as the

游客2025-02-24 47

问题

In a set of measurements, the range is defined as the greatest measurement minus the least measurement. According to the table above, during the first four days of which month was the range of temperatures at noon the greatest?

选项 A、January
B、April
C、June
D、August
E、November

答案 A

解析在某一组测量集中，测量的值域被定义为测量的最大值与测量的最小值的差。根据上表，哪个月前4天中午的温度变化范围最大?
解：本题的正确答案为(A)。由表可知各月份的温度变化范围分别为：
January：32-14=18；
April：58-45=13
June：80-74=6
August：100-84=16
November：48-39=9

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[img]ct_gre6image048[/img]In a set of measurements, the range is defined as the

Iftherangeofthesixmeasurements140,125,180,110,165,andxis80,which

Forallrealnumbersv,theoperationv*isdefinedbytheequationv*=v-(v/3)

Theaverage(arithmeticmean)of50measurementsis34.6,andtheleastandthe

Anoperation,*,isdefinedasfollows:foranypositivenumbersaandb.[img]2

Ifthefunctiongisdefinedforallnonzeronumbersybyg(y)=[img]2014m9x/ct_e

Thesequenceofnumbersa1,a2,a3,...,an,...isdefinedby[img]2014m9x/ct_egreqj_

Whichofthefollowingfunctions/definedforallnumbersxhasthepropertythat

Eighthundredinsectswereweighed,andtheresultingmeasurements,inmilligram

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