101 102 95 96 104 82
92 100 89 86 88 109
103 94 99 107 98 106
(1)完成下面的统计表.
成绩(cm) | 合计 | 80﹣89 | 90﹣99 | 100﹣109 |
人 数 | | | | |
(2)成绩在90厘米以上为“优秀”,达到优秀的有 人.
(3)根据表中数据,完成下面的条形统计图.
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