There is no other name for the 25th quartile. The 50th is known as the median though but the 75th quartile also doesn't have another name.
Oh honey, bless your heart. The 75th percentile means that 75% of the data falls below that number. So, if you have 100 data points, the 75th percentile would actually be the 75th number in order. In this case, 61-70 would be the 70th percentile, not the 75th.
The quartile deviation(QD) is half the difference between the highest and lower quartile in a distribution.
Yes the 69th percentile result is considered in the healthy range.
A percentile is always between 0% and 100%, never negative.
No
1/4
lower quartile
Amherst's 2014 25th-75th percentile ACT scores are 31-35 on the English section, 29-34 on the Math section, and 30-34 Composite.
Barnard's 2014 25th-75th percentile ACT scores are 29-34 on the English section, 25-31 on the Math section, and 28-31 Composite.
Baylor's 2014 25th-75th percentile ACT scores are 24-30 on the English section, 24-29 on the Math section, and 24-29 Composite.
Berkeley's 2014 25th-75th percentile ACT scores are 27-34 on the English section, 27-34 on the Math section, and 27-33 Composite.
Brandeis's 2014 25th-75th percentile ACT scores are 28-33 on the English section, 27-33 on the Math section, and 28-32 Composite.
Bucknell's 2014 25th-75th percentile ACT scores are 27-33 on the English section, 26-31 on the Math section, and 27-31 Composite.
Caltech's 2014 25th-75th percentile ACT scores are 33-35 on the English section, 34-36 on the Math section, and 33-35 Composite.
Colgate's 2014 25th-75th percentile ACT scores are 30-34 on the English section, 28-33 on the Math section, and 30-32 Composite.
Columbia's 2014 25th-75th percentile ACT scores are 33-35 on the English section, 32-35 on the Math section, and 32-35 Composite.
Eckerd's 2014 25th-75th percentile ACT scores are 22-28 on the English section, 21-26 on the Math section, and 22-28 Composite.