GRE
Probability of getting exactly 2 heads
Probability of getting exactly 3 heads
Probability that A and B both occur
0.1
The probability that event A occurs
0.3
Average (arithmetic mean) of integers from -50 to -1 inclusive.
Average (arithmetic mean) of integers from -50 to 0 inclusive.
The average (arithmetic mean) of w , x and y
6
25000 +道题目
236本备考书籍