GRE
The total amount of interest that Nancy's investment earned
The total amount of interest that David's investment earned
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 number of sequences in S in which f, b, h, and g appear consecutively in that order
The number of sequences in T in which f and b appear consecutively in that order
The arithmetic mean of the integers in the set
20
The number of different groups of 2 kittens that can be chosen from a litter of 8 kittens
The number of different groups of 6 puppies that can be chosen from a litter of 8 puppies
The length of line segment AC
The length of line segment BE
The sum of the first 15 terms of the sequence
5
25000 +道题目
245本备考书籍