5.1班: | 88 | 87 | 88 | 87 | 85 | 96 | 98 | 90 | 87 | 91 |
93 | 99 | 87 | 95 | 88 | 92 | 94 | 88 | 87 | 88 | |
5.2班: | 82 | 86 | 87 | 89 | 94 | 95 | 83 | 96 | 92 | 84 |
93 | 97 | 85 | 98 | 99 | 88 | 91 | 90 | 81 | 80 |
(1)这两组数据的众数各是几个?
(2)你有什么发现?
答:在一组数据中,众数可能 一个,也可能 众数.
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