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

Average (arithmetic mean) of v and w

Average (arithmetic mean) of x and y

25000 +道题目

3本备考书籍