(1)摸到绿珠子的可能性有多大?
(2)佳佳摸出了1颗蓝珠子,放回后摇匀.强强来摸,摸出的也是1颗蓝珠子,又放回摇匀.聪聪来摸,摸到哪种颜色珠子的可能性最大?
(3)佳佳摸走了1颗红珠子,强强又摸走了1颗红珠子,都没有放回.这时聪聪来摸,摸到哪种颜色珠子的可能性最大?
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