题目内容双击单词支持查询和收藏哦～
收藏
纠错
A: {71,73,79,83,87} B:{57,59,61,67}
If one number is selected at random from set A, and one number is selected at random from set B, what is the probability that both numbers are prime?
-
A.$$\frac{9}{20}$$
-
B.$$\frac{3}{5}$$
-
C.$$\frac{3}{4}$$
-
D.$$\frac{4}{5}$$
-
E.1
B显示答案
