男生:98 97 88 86 63 100 98 90 80 86 85 66 99 85 98 83 82 79 91
女生:79 86 83 77 63 97 75 87 88 87 86 53 81 82 100 99 54 87 62 86
(1)用分类整理的方法统计以上数据,并根据要求将统计结果填入下表:
100 | 99~80 | 79~60 | 60以下 | |
男生 | ||||
女生 |
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