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OpenStudy (anonymous):
Find the value of Q3 for the following data set. 4 6 8 8 8 9 13 15
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OpenStudy (amistre64):
q3 = p75
OpenStudy (amistre64):
there are 8 data points; 75% of 8 = 6; it is that value between the 6th and 7th data points
OpenStudy (amistre64):
(9+13)/2 = 22/2 = 11
OpenStudy (anonymous):
oh so i just take the 6th and 7th add them then divide by 2? is tht how it is always?
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OpenStudy (amistre64):
that is how this one is since the percentage is an integer; if it had been a decimal, you simply round it up to the next spot
OpenStudy (amistre64):
say it had been 6.3678; then you pick the 7th point
OpenStudy (anonymous):
thank u amistre64
OpenStudy (amistre64):
yep
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