Seudónimo Seudónimo
  • 12-05-2016
  • Mathematics
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Look at the question! Thanks :) (please explain)

Look at the question Thanks please explain class=

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caylus
caylus caylus
  • 12-05-2016
Hi,
265+x+264+228=4*250
==> x+757=1000
==>x=1000-757
==>x=243
which is less than 250
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apologiabiology
apologiabiology apologiabiology
  • 12-05-2016
find the deviation they each hae from the mean
250+the deviations=x

265 is -15 less than 250
-15

264 is -14 less than 250
-14

228 is 22 less than 250
22

add them
-15-14+22=-7

250-7=243=x

it is less than 250

answer is A

value of x=243
Answer Link

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