Which of the following is closest to the average(arithmetic mean)number of cardi

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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 cardi

Forwhichofthefollowingbirdspeciesisthestandarddeviationofthenumbers

In1993theaverage(arithmeticmean)pricepercardforallgreetingcardssoldw

Whenthedecimalpointofacertainpositivedecimalnumberismovedsixplaces

Thedistributionofthenumbersofhoursthatstudentsatacertaincollegestud

[img]2015m7x/ct_egreqm_egreqtbz1_0049_20153[/img]Whichofthefollowingisclos

Basedontheinformationgiven,whichofthefollowingstatementsaboutInternet

ThenumberofInternetusersintheUnitedStateswasapproximatelyhowmanytim

Iftisanintegerand8m=16t,whichofthefollowingexpressesmintermsof

Fortherectangularsolidbelow,findthefollowing.(a)Surfaceareaofthesoli

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某2层地上商店建筑，每层建筑面积为6000m2，所设置的自动喷水灭火系统应至少设

波长为λ的单色光垂直入射到一衍射光栅上，当光栅常数为(a+b)时，第一级衍射条纹

室内（），应设有明显标志的永久性隔离挡板（护网）。母线分段部分$;$母线交叉部分

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