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Mathematics 18 Online
OpenStudy (anonymous):

What is the third quartile (Q3) of the data set? 171, 91, 111, 111, 158, 150, 146, 166, 86 A. 86 B. 101 C. 146 D. 162

OpenStudy (anonymous):

@butterflydreamer

OpenStudy (butterflydreamer):

okay follow a similar step to what we did like in the question before :) Arrange your data in ascending order (lowest to highest). Then count how many numbers there are in total.

OpenStudy (anonymous):

okay im gonna try to work it out and can you check my answer?

OpenStudy (butterflydreamer):

yeah ^_^.

OpenStudy (anonymous):

i got 101?? please say im right!!!

OpenStudy (butterflydreamer):

xD give me a minute to work it out myself :P

OpenStudy (butterflydreamer):

hmmmm you forgot one part ^_^. The question is asking for Q3 not Q1. So you have to look at the upper quartile instead

OpenStudy (butterflydreamer):

so you apply the same thing you did for the lower quartile (Q1) which BTW was 101 so good work there. But we're trying to find the upper quartile (Q3). Which is the last quartile

OpenStudy (anonymous):

oooh okay

OpenStudy (anonymous):

im lost haha

OpenStudy (anonymous):

OH wait!! its D

OpenStudy (butterflydreamer):

xD EXCELLENT ^_^ !!

OpenStudy (butterflydreamer):

and yah that's correct LOL

OpenStudy (anonymous):

Thanks so much!

OpenStudy (butterflydreamer):

no probs :P

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