A,B两事件，若P(AUB)＝0.8，P(A)＝0.2，＝0.4，则下列（）成立.http://image.zhihuishu.com/zhs/onlineexam/ueditor/201707/6625fe22e3d14b4d8c0f23cfd0a6d54e.png
举一反三
- 已知 P （ A ） =0.8, P(A-B)=0.2, ， 则 P(B)= （ ）http://image.zhihuishu.com/zhs/onlineexam/ueditor/201707/14c8674c34b54c5e8c466a4e310ba6ad.png
- A,B两事件，若P(AUB)＝0.8，P(A)＝0.2，＝0.4，则下列（）成立.
- 设有A,B两事件,P(AUB)=0.8,P(A)=0.2,P()=0.4.则下列()成立。 A: P()=0.32 B: P()=1 C: P(AB)=0.4 D: P()=0.48
- 一维谐振子的哈密顿算符为 。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201707/ffe1f4b5eedc462dadafc20bd0daf952.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201707/824bfe9bd226469ba486d5145a62fde4.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201707/c2e73fa49ffd40b38a9fa2c0d0f67f4d.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201707/4364f1f77f4a404ba32a149b075751c9.png" />
- X 服从参数为1/9的指数分布，则P｛3 http://image.zhihuishu.com/zhs/onlineexam/ueditor/201707/f0a7e4b429b846099c2e4b240042e6e7.png