A group of 20 values has a mean of 85 and a median of 80. A different group of 3

游客2024-01-12 34

问题 A group of 20 values has a mean of 85 and a median of 80. A different group of 30 values has a mean of 75 and a median of 72.
(a)What is the mean of the 50 values?
(b)What is the median of the 50 values? [br]

选项

答案 The median cannot be determined from the information given.

解析

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A group of 20 values has a mean of 85 and a median of 80. A different group of 3

Lastyear,landvaluesinmostpartsofthepinelandsrosealmostsofast,andi

Althoughmanyartpatronscanreadilydifferentiateagooddebenturefromanund

Ifn=pqr,wherep,q,andrarethreedifferentpositiveprimenumbers,howma

Forwhichofthefollowinglistsofnumberisthemedianequaltotheaverage(a

Whatisthetotalnumberofdifferent5-digitnumbersthatcontainallofthedi

Amanufacturepackagessoappowderincontainersofthreedifferentsizes.Thea

Themedianof10,15,xandyis18.5,andx

Whatisthemedianofthedatagivenbelow?80,19,82,15,72,3Themedian

Whichisboththemeanandthemedianof5consecutiveintegerstheleastofwhi

Agivenstreetmedianisplantedwithtrees.Ofthe30treesinthemedian,3ar

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Whales,severalspeciesofwhichfaceextinction,havebecomesubjectsofco

A—FreedeliverytoyourdoorB—TollgateC—NoentryD—StrictlynoparkingE—Lugg

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