序号 | 成绩/下 | 序号 | 成绩/下 | 序号 | 成绩/下 | 序号 | 成绩/下 | |||
1 | 101 | 6 | 87 | 11 | 89 | 16 | 80 | |||
2 | 98 | 7 | 75 | 12 | 85 | 17 | 102 | |||
3 | 88 | 8 | 90 | 13 | 93 | 18 | 86 | |||
4 | 95 | 9 | 100 | 14 | 98 | 19 | 98 | |||
5 | 72 | 10 | 90 | 15 | 92 | 20 | 110 |
(1)请你把她们的成绩整理到统计表中。
成绩(下) | 70~79 | 80~95 | 96及以上 |
人数(人) |
(2)三(1)班女生1分钟跳绳的最好成绩是
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