100 | 89 | 94 | 56 | 87 | 75 | 69 | 83 | 75 | 63 |
98 | 99 | 76 | 85 | 91 | 64 | 95 | 60 | 81 | 65 |
96 | 74 | 78 | 65 | 73 | 85 | 93 | 99 | 77 | 76 |
58 | 60 | 67 | 74 | 86 | 80 | 84 | 88 | 95 | 88 |
1.按分数段填写下表.
分数段/分 | 60以下 | 60~69 | 70~79 | 80~89 | 90~99 | 100 | 合计 |
人数 |
2.根据你统计好的表格绘制合适的统计图.
3.
4.如果把满分定为一等奖,把90~99分定为二等奖,把80~89分定为三等奖.那么一等奖有
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