![](https://img./dksih/QBM/2018/7/26/1996659321700352/1998107056947201/STEM/e1a939a82e3a46e5bc91362499cff264.png?resizew=461)
![](https://img./dksih/QBM/2018/7/26/1996659321700352/1998107056947201/STEM/f6b5f95584d54007911b24a0c3ebe176.png?resizew=529)
①请你根据统计表中的数据把统计图补充完整.
②与第一次测试成绩相比,第二次测试成绩进步最大的是( ).
③在这四个人中选一个参加学校的跳绳比赛,根据两次测试成绩选( ).
④第一次测试四个人平均每人跳( )个;王亮平均每次跳( )个.
![](http://static.xuejinqu.com/images/y-prise.png)
同类型试题
![](http://static.xuejinqu.com/images/medal.png)
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)