gabbyalicorn
  • gabbyalicorn
Brendan selected 10 sixth-year students in his school at random and asked each person how many years the person had lived at his or her current address. He recorded the results. 3, 8, 12, 9, 12, 8, 12, 4, 6, 12 What is the estimated mean number of years that a sixth-year student had lived at his or her current address? A. 8.5 years B. 8.6 years C. 9 years D. 12 years
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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gabbyalicorn
  • gabbyalicorn
@amberosales
kropot72
  • kropot72
Add the 10 numbers and divide the total by 10 to find the estimated mean. It is an estimate because the times have been rounded to the nearest year.
gabbyalicorn
  • gabbyalicorn
6.6

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More answers

kropot72
  • kropot72
What was your total number of years when you added the 10 numbers?
gabbyalicorn
  • gabbyalicorn
oh 7.6
gabbyalicorn
  • gabbyalicorn
which would be b if u round
gabbyalicorn
  • gabbyalicorn
Right?
kropot72
  • kropot72
You need to redo your addition. Rounding is not necessary to get the answer.
gabbyalicorn
  • gabbyalicorn
oh, okay. So not the answer.
kropot72
  • kropot72
Could it be that you are guessing and that you did not add the 10 numbers?
gabbyalicorn
  • gabbyalicorn
i got 7.6
kropot72
  • kropot72
\[\large 3+8+12+9+12+8+12+4+6+12=?\]
gabbyalicorn
  • gabbyalicorn
i got 98
gabbyalicorn
  • gabbyalicorn
wait not 86
kropot72
  • kropot72
Yes. 86 is the total. Now divide 86 by 10.
gabbyalicorn
  • gabbyalicorn
8.6 which is B :D
kropot72
  • kropot72
Yes, you are correct.
gabbyalicorn
  • gabbyalicorn
Thank you
kropot72
  • kropot72
You're welcome :)

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