GRE
$$X$$
2
The length of a diagonal of the rectangle
20
The standard deviation of the seven numbers $$-c, -b, -a, 0, a, b, c$$
The standard deviation of the seven numbers $$-c^{2}, -b^{2}, -a^{2}, 0, a^{2}, b^{2}, c^{2}$$
The standard deviation of data set Ⅰ
The standard deviation of data set Ⅱ
The remainder when $$35^{12}+63^{17}$$ is divided by 14
3
The measure of angle $$x$$
56
The units digit of N
6
The number of candidates who do not have a PhD
18
The standard deviation of the numbers in list R
The standard deviation of the numbers in list T
The area of the region enclosed by RSTW
50
The least of the 12 consecutive odd integers
301
25000 +道题目
236本备考书籍