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Mathematics 7 Online
OpenStudy (anonymous):

Help me with this question please http://prntscr.com/alc1ry possible answers: ME = ±3.27 ME = ±9.81 ME = ±6.54 ME = ±6.20

jimthompson5910 (jim_thompson5910):

how far did you get?

OpenStudy (anonymous):

i can't figure out what to use for the n

jimthompson5910 (jim_thompson5910):

you can either count all the dots (slow method) or notice how it says `rerandomizing the data 100 times` which points to the sample size being `n = 100`

OpenStudy (anonymous):

that is all I need so i could work it

OpenStudy (anonymous):

ok

jimthompson5910 (jim_thompson5910):

hmm n=100 isn't working, I messed up. It should be n = 10 and it leads you to one of the answer choices

jimthompson5910 (jim_thompson5910):

the good news is that N plays no role in computing SD

OpenStudy (anonymous):

ok let me try it

OpenStudy (anonymous):

I got 6.53535

jimthompson5910 (jim_thompson5910):

which rounds to 6.54

OpenStudy (anonymous):

perfect! thanks!

jimthompson5910 (jim_thompson5910):

you're welcome

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