48 | 62 | 56 | 52 | 60 | 47 | 58 | 49 | 54 | 52 |
43 | 39 | 52 | 48 | 51 | 38 | 47 | 61 | 60 | 55 |
成绩/个 | 合计 | 30-39 | 40-49 | 50-59 | 60-69 |
人数/人 |
四(2)班男生2分钟口算的成绩统计图

(3)小林这次的成绩在班级男生中排名前4,她1分钟口算的成绩大约是多少个?(在正确答案的后面画“√”)
30( ) 60( ) 62( )

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

