评委1 | 评委2 | 评委3 | 评委4 | 评委5 | 评委6 | |
得分 | 89 | 93 | 96 | 94 | 100 | 97 |
以下4种方法计算得出淘气的比赛成绩( )最合理。
A.(89+93+96+94+100+97)÷6 | B.(89+93+96+94+97)÷5 |
C.(93+96+94+100+97)÷5 | D.(93+96+94+97)÷4 |
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