[考題] 102 高考經建/統計學第4題
下列是5位學生的身高與體重資料:
身高(x) 172 168 164 170 176
體重(y) 62 54 58 64 62
請問那一個變數的離勢(Dispersion)較大?(15分)
A補習班解答是用 變異係數
B補習班用的是直接比較標準差
我的想法是 用變異係數當然沒問題
我想問說 如果用標準差可以嗎??
我知道身高和體重單位不一樣 用變異系數是比較好 可以消除單位
那單單比較標準差呢?? 似乎不大可行嗎?? 可是B補習班解答又那樣寫??
--
ps... 本文限制umist推文噓文箭頭
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 203.79.171.91
※ 編輯: baumen 來自: 203.79.171.91 (07/17 07:59)
→
07/17 08:00, , 1F
07/17 08:00, 1F
※ 編輯: baumen 來自: 203.79.171.91 (07/17 08:01)
推
07/17 08:48, , 2F
07/17 08:48, 2F
→
07/17 08:51, , 3F
07/17 08:51, 3F
推
07/17 08:53, , 4F
07/17 08:53, 4F
噓
07/17 08:55, , 5F
07/17 08:55, 5F
→
07/17 09:05, , 6F
07/17 09:05, 6F
→
07/17 09:07, , 7F
07/17 09:07, 7F
→
07/17 09:30, , 8F
07/17 09:30, 8F
→
07/17 09:32, , 9F
07/17 09:32, 9F
→
07/17 09:45, , 10F
07/17 09:45, 10F
→
07/17 09:46, , 11F
07/17 09:46, 11F
→
07/17 10:17, , 12F
07/17 10:17, 12F
推
07/17 10:22, , 13F
07/17 10:22, 13F
推
07/17 10:26, , 14F
07/17 10:26, 14F
→
07/17 10:32, , 15F
07/17 10:32, 15F
→
07/17 10:33, , 16F
07/17 10:33, 16F
推
07/17 10:39, , 17F
07/17 10:39, 17F
→
07/17 10:39, , 18F
07/17 10:39, 18F
→
07/17 10:40, , 19F
07/17 10:40, 19F
→
07/17 11:46, , 20F
07/17 11:46, 20F
→
07/17 14:00, , 21F
07/17 14:00, 21F
→
07/17 14:01, , 22F
07/17 14:01, 22F
→
07/17 14:50, , 23F
07/17 14:50, 23F
→
07/17 14:51, , 24F
07/17 14:51, 24F
→
07/17 14:52, , 25F
07/17 14:52, 25F
→
07/17 14:53, , 26F
07/17 14:53, 26F
→
07/17 14:54, , 27F
07/17 14:54, 27F
→
07/17 15:02, , 28F
07/17 15:02, 28F
※ 編輯: baumen 來自: 203.79.171.91 (07/17 15:03)
→
07/17 16:54, , 29F
07/17 16:54, 29F
→
07/17 16:57, , 30F
07/17 16:57, 30F
→
07/17 16:58, , 31F
07/17 16:58, 31F
→
07/17 16:59, , 32F
07/17 16:59, 32F
→
07/17 17:14, , 33F
07/17 17:14, 33F
→
07/17 17:15, , 34F
07/17 17:15, 34F
→
07/17 17:15, , 35F
07/17 17:15, 35F
推
07/17 17:17, , 36F
07/17 17:17, 36F
→
07/17 17:18, , 37F
07/17 17:18, 37F
→
07/17 17:19, , 38F
07/17 17:19, 38F
→
07/17 17:20, , 39F
07/17 17:20, 39F
→
07/17 17:22, , 40F
07/17 17:22, 40F
→
07/17 17:25, , 41F
07/17 17:25, 41F
→
07/17 17:30, , 42F
07/17 17:30, 42F
→
07/17 17:31, , 43F
07/17 17:31, 43F
→
07/17 17:32, , 44F
07/17 17:32, 44F
→
07/17 17:33, , 45F
07/17 17:33, 45F
→
07/17 17:34, , 46F
07/17 17:34, 46F
→
07/17 17:34, , 47F
07/17 17:34, 47F
→
07/17 22:50, , 48F
07/17 22:50, 48F
→
07/17 22:50, , 49F
07/17 22:50, 49F
→
07/17 22:51, , 50F
07/17 22:51, 50F
→
07/17 22:52, , 51F
07/17 22:52, 51F
→
07/17 22:54, , 52F
07/17 22:54, 52F
→
07/17 22:55, , 53F
07/17 22:55, 53F
→
07/17 22:56, , 54F
07/17 22:56, 54F
→
07/17 22:58, , 55F
07/17 22:58, 55F
→
07/17 22:58, , 56F
07/17 22:58, 56F
→
07/17 22:59, , 57F
07/17 22:59, 57F
→
07/17 23:01, , 58F
07/17 23:01, 58F
→
07/17 23:01, , 59F
07/17 23:01, 59F
→
07/17 23:12, , 60F
07/17 23:12, 60F
→
07/17 23:14, , 61F
07/17 23:14, 61F
→
07/18 02:25, , 62F
07/18 02:25, 62F
→
07/18 02:25, , 63F
07/18 02:25, 63F
推
07/18 19:23, , 64F
07/18 19:23, 64F
→
07/18 19:24, , 65F
07/18 19:24, 65F
→
07/18 19:25, , 66F
07/18 19:25, 66F
→
07/18 19:26, , 67F
07/18 19:26, 67F
→
07/18 19:27, , 68F
07/18 19:27, 68F
→
07/18 19:31, , 69F
07/18 19:31, 69F
→
07/18 19:32, , 70F
07/18 19:32, 70F
→
07/18 19:32, , 71F
07/18 19:32, 71F
→
07/18 19:33, , 72F
07/18 19:33, 72F
※ 編輯: baumen 來自: 218.187.10.158 (07/19 01:31)
噓
07/21 02:24, , 73F
07/21 02:24, 73F
噓
07/21 02:31, , 74F
07/21 02:31, 74F
噓
07/21 02:33, , 75F
07/21 02:33, 75F
→
07/21 02:35, , 76F
07/21 02:35, 76F
→
07/21 02:36, , 77F
07/21 02:36, 77F
噓
07/21 02:42, , 78F
07/21 02:42, 78F
→
07/21 18:41, , 79F
07/21 18:41, 79F
→
07/21 18:41, , 80F
07/21 18:41, 80F
→
07/21 18:42, , 81F
07/21 18:42, 81F
→
07/21 18:57, , 82F
07/21 18:57, 82F