GRE
$$\frac{n+1}{n+2}$$
$$\frac{1}{2}$$
x
y
The standard deviation of the 16 integers that are not equal to m
s
The standard deviation of the five numbers 10, 30, 50, 70, and 90
The standard deviation of the five numbers 10, 45, 50, 55, and 90
The standard deviation of the numbers in list R
The standard deviation of the numbers in list T
The standard deviation of the 5 numbers in set A
The standard deviation of the 5 numbers in set B
25000 +道题目
198本备考书籍