## Any statisticians out there?? Where would a 3.81 fall?

(Study Tips, Dealing With Stress, Maintaining a Social Life, Financial Aid, Internships, Bar Exam, Careers in Law . . . )
UnKnO

Posts: 22
Joined: Sun Jan 31, 2010 9:23 pm

### Any statisticians out there?? Where would a 3.81 fall?

I am mathematically disabled. Where would a 3.81 fall on a cuve (what %) with the following data points? Any help would be much appreciated.

GPA 3.81

25% - 3.358

33% - 3.262

50% - 3.071

09042014

Posts: 18204
Joined: Wed Oct 14, 2009 10:47 pm

### Re: Any statisticians out there?? Where would a 3.81 fall?

UnKnO wrote:I am mathematically disabled. Where would a 3.81 fall on a cuve (what %) with the following data points? Any help would be much appreciated.

GPA 3.81

25% - 3.358

33% - 3.262

50% - 3.071

No way to know unless we know the distribution of the curve. But I suspect its really fucking high.

If its Gaussian solve the cdf

jackassjim

Posts: 184
Joined: Sun Dec 07, 2008 10:58 pm

### Re: Any statisticians out there?? Where would a 3.81 fall?

UnKnO wrote:I am mathematically disabled. Where would a 3.81 fall on a cuve (what %) with the following data points? Any help would be much appreciated.

GPA 3.81

25% - 3.358

33% - 3.262

50% - 3.071

You find out what *tile position (median, quartiles, etc.) you're in without having access to all the other GPAs in the population (edit: or as the above poster says, you need info on the distribution). For instance, most of the top 25% might be clustered in one chunk in the 3.85-4 range, which means you would end up close to 25%. In contrast, if all those in the top 25% are clustered near the 3.3 threshold, then you might end up being top 1%. Bottom line: no one can answer your question.

thesealocust

Posts: 8523
Joined: Mon Oct 20, 2008 8:50 pm

### Re: Any statisticians out there?? Where would a 3.81 fall?

edit: never mind
Last edited by thesealocust on Wed Jun 30, 2010 8:41 pm, edited 1 time in total.

ScaredWorkedBored

Posts: 409
Joined: Sat Jul 11, 2009 12:39 pm

### Re: Any statisticians out there?? Where would a 3.81 fall?

Depends if your school ranks current class or uses rolling tables. It's probably ~ Top 5% or so on a distribution (see thesealocust math), but in a given class with a B median, you could be in the top few people. No curve requires that someone get straight A's; it's entirely possible for 1 or no people to do that in a semester.

You're just too high to really say with statistical certainty.