Ok

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sighsigh
Posts: 263
Joined: Wed Oct 20, 2010 8:47 pm

Ok

Postby sighsigh » Tue Mar 08, 2011 2:00 pm

Nm.
Last edited by sighsigh on Sat Mar 19, 2011 3:44 am, edited 2 times in total.

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barklm
Posts: 64
Joined: Thu Dec 16, 2010 11:26 pm

Re: Someone explain Harvard's median to me please...

Postby barklm » Tue Mar 08, 2011 2:03 pm

sighsigh wrote:So, the ABA reports Harvard's 75th percentile GPA at 3.96 and 25th percentile GPA at 3.76. Doesn't that mean the median (i.e. the 50th percentile) should be 3.86? Yet it lists 3.89 as the median.

--LinkRemoved--

I'm a statistics noob, so please explain this. Thanks.

What you calculated is the mean - or the average.

The median isn't the numeric average but the middle number. For instance, if 101 people were accepted than the median GPA would be that of the 51st person.

Hope that makes sense!

StanDarsh
Posts: 24
Joined: Thu Dec 16, 2010 3:42 pm

Re: Someone explain Harvard's median to me please...

Postby StanDarsh » Tue Mar 08, 2011 2:16 pm

barklm wrote:
sighsigh wrote:So, the ABA reports Harvard's 75th percentile GPA at 3.96 and 25th percentile GPA at 3.76. Doesn't that mean the median (i.e. the 50th percentile) should be 3.86? Yet it lists 3.89 as the median.

--LinkRemoved--

I'm a statistics noob, so please explain this. Thanks.

What you calculated is the mean - or the average.

The median isn't the numeric average but the middle number. For instance, if 101 people were accepted than the median GPA would be that of the 51st person.

Hope that makes sense!


You can't determine the average GPA from the 25th and 75th percentiles.

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ladybug89
Posts: 273
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Re: Someone explain Harvard's median to me please...

Postby ladybug89 » Tue Mar 08, 2011 2:39 pm

Yeah, what OP calculated is the median if there is one person for every GPA between the 75th and the 25th.

sighsigh
Posts: 263
Joined: Wed Oct 20, 2010 8:47 pm

Re: Someone explain Harvard's median to me please...

Postby sighsigh » Tue Mar 08, 2011 3:28 pm

So the answer is...

Sam Seaborn
Posts: 53
Joined: Tue Jun 01, 2010 3:36 pm

Re: Someone explain Harvard's median to me please...

Postby Sam Seaborn » Tue Mar 08, 2011 3:29 pm

...that you need to wikipedia mean and median.

tourdeforcex
Posts: 428
Joined: Fri Jun 11, 2010 2:19 pm

Re: Someone explain Harvard's median to me please...

Postby tourdeforcex » Tue Mar 08, 2011 3:33 pm

the answer is to this question: "Doesn't that mean the median (i.e. the 50th percentile) should be 3.86?"

is no.

as explained by above posters.

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BlakcMajikc
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Joined: Fri Oct 29, 2010 1:05 pm

Re: Someone explain Harvard's median to me please...

Postby BlakcMajikc » Tue Mar 08, 2011 3:38 pm

I'll try to re-explain bc Im in a good mood.

You are thinking of 50th percentile in terms of the mean. The 50th percentile in this case is simply the middle number of an order set of numbers.

i.e. In the ordered set of 1,4,8,9,10 - and 8 is the median and the 50th percentile. However, 8 is not the mean. (6.4 is the mean)

Don't think so hard and you'll get it. In fact, medians help for splitters. A 3.4 below 25th percentile won't pull down the percentile or median any differently than a 3.1 below median. It is the number of those below the percentiles that makes the difference.

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bport hopeful
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Re: Someone explain Harvard's median to me please...

Postby bport hopeful » Tue Mar 08, 2011 3:48 pm

You cant determine a mean with the 25th and 75ths either.

Fail posts fail.

sighsigh
Posts: 263
Joined: Wed Oct 20, 2010 8:47 pm

Re: Someone explain Harvard's median to me please...

Postby sighsigh » Tue Mar 08, 2011 3:49 pm

Ok merci.

Any guess on whether Harvard's GPA median will climb or fall after this cycle? (The number of LSAT takers went down this cycle for the first time in a long time, btw).

I am ever so slightly above Harvard's median atm. :(
Last edited by sighsigh on Tue Mar 08, 2011 4:06 pm, edited 1 time in total.

tourdeforcex
Posts: 428
Joined: Fri Jun 11, 2010 2:19 pm

Re: Someone explain Harvard's median to me please...

Postby tourdeforcex » Tue Mar 08, 2011 3:52 pm

my guess would be H's median would rise as i think medians are rising across the board... then again from your information of # of test takers going down... not sure. still would gamble median will rise.

GPA isn't everything. best wishes.

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legalmo
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Re: Someone explain Harvard's median to me please...

Postby legalmo » Wed Mar 09, 2011 3:05 pm

Isn't a 3.8 a 3.8? If you're trying to see how your numbers compare I don't think 0.02 points (of a GPA especially) will matter much. Or would they?




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