GRE
The standard deviation of the heights of 12 children whose mean height is 50 inches
The standard deviation of the heights of 10 children whose mean height is 60 inches
P (R <1.375x)
P (T <1.25x)
The percent of the educators surveyed who reported that they used the Internet for both research and E-mail
26%
The number of ordered triples ($$x_1$$, $$x_2$$, $$x_3$$), where $$x_1$$, $$x_2$$ and $$x_3$$ are non-negative integers such that $$x_1$$+$$x_2$$+$$x_3=9$$
$$55$$
25000 +道题目
236本备考书籍