GRE
n
4
$$x^{-1}$$
$$y^{-1}$$
The area of the region enclosed by RSTW
50
The average (arithmetic mean) of the first 99 positive integers
The median of the first 101 positive odd integer
$$<2a, 4b>$$
$$<4a, 2b+1>$$
The expected value of X
The expected value of Y
$$x+y+z+u+v+w$$
$$360$$
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236本备考书籍