学号 | 成绩(cm) | 学号 | 成绩(cm) | 学号 | 成绩(cm) |
201501 | l58 | 2015010 | l41 | 2015019 | 129 |
201502 | l37 | 2015011 | 139 | 2015020 | l47 |
201503 | l50 | 2015012 | 105 | 2015021 | 144 |
201504 | l53 | 2015013 | 103 | 2015022 | 146 |
201505 | 109 | 2015014 | 119 | 2015023 | 136 |
201506 | 110 | 2015015 | 121 | 2015024 | 145 |
201507 | 125 | 2015016 | 130 | 2015025 | 101 |
201508 | 133 | 2015017 | 135 | 2015026 | 122 |
201509 | 148 | 2015018 | 138 | 2015027 | 128 |
(1)填写下表。
成绩 | 109及109以下 | 110~l29 | 130~149 | 150及150以上 |
人数 |
(2)根据统计表,你能得到什么信息?
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