GRE
x+y
5
The average of the range of the values in data set $$X$$ and the range of the values in data set $$Y$$
The range of the values in data set $$Z$$
(a+b)(c+d)
a+b(c+d)
The standard deviation of the numbers in list S
The standard deviation of the numbers in list T
The percent of the class who neither submitted their assignments on time nor submitted them one day late
18%
$$Q_{11}$$
$$(3^{17})Q_{28}$$
25000 +道题目
245本备考书籍