对于随机变量<img src="/lqwvjeImg/6f/6f187dc7103766cde28289eaf52a92cc.png"style="width:18px;height:17px;">、<img src="/lqwvjeImg/53/53ca00901a5cf004512a03232b6eca05.png"style="width:15px;height:17px;">,若<img src="/lqwvjeImg/98/98a7f9ecec4046b2b722e3c57a5e4a20.png"style="width:141px;height:21px;">,则( )。<br>·<img src="/lqwvjeImg/6c/6cf402204208a9ab393a96651692e2a1.png"<br>·<img src="/lqwvjeImg/6f/6f187dc7103766cde28289eaf52a92cc.png"style="width:18px;height:17px;">与<img src="/lqwvjeImg/53/53ca00901a5cf004512a03232b6eca05.png"style="width:15px;height:17px;">不独立。