学号 | 体重 | 学号 | 体重 | 学号 | 体重 | 学号 | 体重 |
1 | 29 | 9 | 34 | 17 | 26 | 25 | 31 |
2 | 37 | 10 | 30 | 18 | 32 | 26 | 28 |
3 | 40 | 11 | 36 | 19 | 30 | 27 | 27 |
4 | 33 | 12 | 32 | 20 | 51 | 28 | 45 |
5 | 28 | 13 | 50 | 21 | 26 | 29 | 34 |
6 | 35 | 14 | 37 | 22 | 28 | 30 | 29 |
7 | 26 | 15 | 33 | 23 | 40 | 31 | 26 |
8 | 49 | 16 | 24 | 24 | 31 | 32 | 42 |
体重(千克) | 30及30以下 | 31﹣35 | 36﹣40 | 40以上 |
人数 | | | | |
同类型试题
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
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