请教be expected to be 的用法！多谢帮助！

洛拉

The majority of students entering law school this fall are expected to be women, a trend that will ultimately place more women in leadership positions in politics and business.(正确答案）

（Women are expected to be the majority of students entering law school this fall, a trend ultimately placing more women in leadership positions in politics and business.)这个句子的问题主要出在哪儿啊？

请问"majority of students are expected to be women 与

        women are expected to be the majority of students " 表达的意思区别是什么？