(Ⅰ)求a的值;
(Ⅱ)现从茎叶图小于3的数据中任取2个数据分别替换m的值,求恰有1个数据使得函数f(x)没有零点的概率.
(2015•包头)下列说法正确的是( )
—She's reading a book. And she's ____(interest) in reading.