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OpenStudy (pphalke):
Given the numbers 2,5,7,8,9,10,11,12,12,13,15,16,17,18,19. Find the percentile rank of the number 11 the answer I had was wrong, it wasn't 46.66% that's not it
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OpenStudy (pphalke):
@mathstudent55
OpenStudy (queenie):
this should help.... http://www.regentsprep.org/regents/math/algebra/ad6/quartiles.htm
OpenStudy (pphalke):
it helps a little I don't know what number to plug in for the formula, it says to get the percentile rank for 11
OpenStudy (mrnood):
have you worked out the mean ans standard deviation of th enumbers?
OpenStudy (pphalke):
no I haven't how do I do that
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OpenStudy (mrnood):
Do you know what percentile means?
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