Which of the following is closest to the average(arithmetic mean)number of cardinal sightings for the 4 seasons?

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问题 Which of the following is closest to the average(arithmetic mean)number of cardinal sightings for the 4 seasons?

选项 A、12
B、14
C、16
D、18
E、20

答案E

解析 The average(arithmetic mean)number of cardinal sightings for the 4 seasons is

, or 19.75. Of the answer choices given, 20 is closest to 19.75.
Thus the correct answer is Choice E.
This explanation uses the following strategies.
Strategy 4: Translate from a Figure to an Arithmetic or Algebraic Representation
Strategy 9: Estimate

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Which of the following is closest to the average(arithmetic mean)number of cardinal sightings for the 4 seasons?

GRE QUANTITATIVE

GRE

Itisanunfortunatefactoftoday’slifethatmostpeoplearegrowingupunabletoseethestars.Theprimenightskyexistson

Somepeoplethinkoflifeasagame.Therearesimilaritiesbetweenlifeandgames;bothcanbeplayed,bothhaverules,andbot

Manyschoolteacherssaythatasdifficultastheirstudentscanbetodealwith,parentscanbeevenworse.Someparentsarequi

Itwassuggestedthat______bigeventliketheYearofRussiainChinashouldcertainlybenefit______relationshipbetweenthe

WehavequiteabitofinformationaboutancientEgyptianmedicine．Doctors’instructionshavebeenfoundtotellus【56】theydid

Mysterynovelssellthousandsofcopieseachyear.Andmany【C1】______countAgathaChristieamongtheirfavoriteauthors.Christi

AsTheplanecircledovertheairport,everyonesensedthatsomethingwaswrong.Theplanewasmovingunsteadilythroughtheair

Thewholeindustrialprocesswhichmakesmanyofthegoodsandmachinesweneedanduseinourdailylife,isboundtocreatea

Intherectangularquadrantsystemshownabove,whichquadrant,ifany,containsnopoint(x,y)thatsatisfiestheequationx2-2

Aninvestmenthasbeengrowingatafixedannualrateof20%sinceitwasfirstmade;noportionoftheinvestmenthasbeenwith

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女性，35岁。甲状腺弥漫性肿大，腺体表面光滑，质地柔软，随吞咽上下移动。其中医诊断是()

计算机病毒传染源可能来自()。

水泥的性能主要取决于()。

税务筹划要尽量使风险最小化,要在节税收益与节税风险之间进行必要的权衡,以保证能够真正取得财务利益。这是指税务筹划要遵循()原则。

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