^
The “1480” number cited above is for admitted students
(“Those admitted boast an SAT average of 1480 …”).
The CDS ranges are supposed to be for enrolled students.
My “1385” number for Georgia Tech is for freshmen enrolled in Fall 2013.
It results from the following MS Excel calculation:
=AVERAGE(620,710)+AVERAGE(670,770)
The numbers are as reported in the Georgia Tech 2013-14 Common Data Set, section C9.
The first pair is the SAT-CR 25th percentile - 75th percentile range;
the second pair is the SAT-M 25th percentile - 75th percentile range.
The GaTech 2014-15 CDS seems to be the latest available at this time.
(http://www.irp.gatech.edu/publications/common-data-set/)
It reports the following 25th percentile - 75th percentile ranges:
Reading 630 720
Math 680 770
By my formula, the average would be:
=AVERAGE(630,720)+AVERAGE(680,770)
= 1400 (avg SAT-CR + SAT-M)
The Fall 2015 entering class may well boast a higher average
(but presumably it won’t be as high as the admitted students’ average).