【简答题】某学校开设排球、篮球、羽毛球、体操课四门课,学生可任选其中一项,老师根据学生报名情况进行统计,并绘制了尚未完成的扇形统计图和频数分布直方图,请结合图中信息回答下列问题: ① 该校学生报名总人数有多少人? ② 选羽毛球的学生有多少人? ③ 选排球和篮球的人数分别占报名总人数的百分之几? ④ 将两个统计图补充完整.
【简答题】A.People with the disease are mentally slow or disabled. B.With the disease, the right side of the brain is much bigger. C.The right-handed are more likely to get the disease. D.The disease was first ...