GRE
The probability that Dana will not get a busy signal in each of 4 different attempts to telephone Carla
$$\frac{1}{4}$$
The number of positive integers less than 50 that are the product of 2 different prime numbers greater than 2
5
The probability that Jessica`s car will be repaired today
$$\frac{1}{3}$$
The median of the 115 scores
76
The number of copies of Magazine X that were sold last month at the subscription price
Twice the number of copies of Magazine X that were sold last month at the cover price
25000 +道题目
236本备考书籍