1眼镜公司欲调查有色眼镜哪种颜色比较受大众喜欢
1眼鏡公司欲調查有色眼鏡哪種顏色比較受大眾喜歡
紫色 綠色 藍色 橘色 黑色
1 0.2 0 0.7 0 0.1 2 0.1 0.1 0.8 0 0 3 0 0 1 0 0 4 0 0 0.5 0.2 0.3 5 0 0.1 0.6 0.3 0 6 0.1 0 0.4 0.2 0.3 7 0.12 0.23 0.34 0.16 0.15 8 0.1 0.3 0.4 0.1 0.1 9 0.3 0 0.7 0 0 10 0.1 0.8 0 0 0.1 11 0 0.4 0.6 0 0 12 0.1 0.1 0.5 0 0.3 13 0.5 0 0.3 0.1 0.1 14 0.1 0.1 0.5 0 0.3 15 0.3 0 0.6 0.1 0 16 0.4 0.1 0.5 0 0 17 0.1 0 0.4 0.2 0.3 18 0 0.2 0.6 0.1 0.1 19 0 0.3 0.5 0.1 0.1 20 0.2 0.2 0.2 0.2 0.2
2.72 2.93 10.14 1.76 2.45 Tj
T=0.7+0.8+1+0.5+0.6+0.4+0.34+0.4+0.7+0+0.6+0.5+0.3+0.5+0.6+0.5+0.4+0.6+0.5j
+0.2=10.14
F:,T=藍色, modej
2在麥當勞點餐,請問您對於等候餐點時間認為多久為宜?(單位為秒)
1[10,30]
2[15,40]
3[10,50]
4[20,40]
5[15,60]
6[20,30]
7[10,30]
8[30,60]
9[10,40]
10[20,60]
11[15,60]
12[40,60]
13[30,60]
14[40,50]
15[20,60]
16[10,40]
17[20,50]
18[30,60]
19[10,50]
20[25,60]
=[FX
10,15,10,20,15,20,10,30,10,20,15,40,30,40,20,10,20,30,10,25
20,
30,40,50,40,60,30,30,60,40,60,60,60,60,50,60,40,50,60,50,60
20]=[20,45.5]
3數學系系上欲增加教室間數,詢問系上20位學生意見
1~3 2~4 3~5 4~6 1 0.5 0.5 2 0.3 0.7 3 0.5 0.5 4 0.4 0.6 5 0.2 0.8 6 0.6 0.4 7 0.4 0.6 8 0.1 0.9 9 0.3 0.7 10 0.2 0.8 11 0.3 0.4 0.3 12 0.2 0.8 13 0.3 0.5 0.2 14 0.6 0.4 15 0.3 0.7 16 0.5 0.5 17 0.3 0.6 0.1 18 0.6 0.4 19 0.3 0.3 0.4 20 0.5 0.5 M={2,3,4,5} j
=[0.5x4+0.5x5+0.3x2+0.7x3+0.5x3+0.5x5+0.4x3+0.6x4+0.2x2+0.8x3+0.6x4+0.4FX
x5+0.4x3+0.6x4+0.1x2+0.9x3+0.3x3+0.7x4+0.2x4+0.8x5+0.3x2+0.4x3+0.3x4+
0.2x2+0.8x3+0.3x3+0.5x4+0.2x5+0.6x3+0.4x4+0.3x4+0.7x5+0.5x2+0.5x3+0.3
x2+0.6x3+0.1x4+0.6x4+0.4x5+0.3x3+0.3x4+0.4x5+0.5x3+0.5x4]/20=3.5L,2