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Mathematics 21 Online
OpenStudy (howard-wolowitz):

One question..... I medal!!!!

OpenStudy (howard-wolowitz):

1. Scores on an exam are normally distributed with a mean of 76 and a standard deviation of 10. In a group of 230 tests, how many students score within one standard deviation of the mean?

OpenStudy (howard-wolowitz):

about 187 students about 115 students about 78 students about 156 students

OpenStudy (foxythepirate0984):

156 i think

OpenStudy (foxythepirate0984):

what do u think? ill say 156

OpenStudy (foxythepirate0984):

Ill try

OpenStudy (howard-wolowitz):

tbh i dont know

OpenStudy (howard-wolowitz):

@pitamar

OpenStudy (howard-wolowitz):

hey pitamar do you think this is 156? also srry to bother you dude

OpenStudy (foxythepirate0984):

let me check ill study for a sec brb

OpenStudy (foxythepirate0984):

I Belive its 156 tell me if im wrong.

OpenStudy (howard-wolowitz):

ok next question

OpenStudy (foxythepirate0984):

mkay

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