GRE
y
0.007
$$p(1-p)$$
$$0.4$$
PS
RS
The standard deviation of the numbers in list A
The standard deviation of the numbers in list B
$$x^{2}$$+$$y^{2}$$
$$4r^{2}$$
|$$-b^{3}$$|
$$-b^{3}$$
25000 +道题目
245本备考书籍