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

Thiskindofcomputeris________handlingallkindsofinformation.

MembershipintheUnitedNationsisopentoallpeace-lovingstateswhichacceptthe______oftheCharter.

______allthemoneypeopleherespendeatingout,restaurants’profitisstillbelowfivepercent.

WehavequiteabitofinformationaboutancientEgyptianmedicine．Doctors’instructionshavebeenfoundtotellus【56】theydid

WehavequiteabitofinformationaboutancientEgyptianmedicine．Doctors’instructionshavebeenfoundtotellus【56】theydid

KidsoftenaskScoutBassett,ofPalmDesert,California,ifshewishesshehadtwonormallegs.Scout,18,answers,"No.Ihave

LeviStraussdidnotinventjeans,butheisconsideredthefirstpersontomakeandsellgreatnumbersofthem.Hewasbornin

Thefollowingdatasufficiencyproblemsconsistofaquestionandtwostatements,labeled(1)and(2),inwhichcertaindataare

IstheperimeteroftriangleABCgreaterthan20?(1)BC-AC=10(2)theareaoftangleABCis20.

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