[計量] pp3數學問題
The variable X is normally distributed. The value X at the 45th, 15th and the Kth percentiles of the distribution are 530, 350, 450, respectively.
A: k
B:30
答案是B, 為什麼呢?
先謝謝大家了
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 59.112.136.112
推
08/15 10:04, , 1F
08/15 10:04, 1F
→
08/15 10:08, , 2F
08/15 10:08, 2F
→
08/15 10:08, , 3F
08/15 10:08, 3F
→
08/15 10:08, , 4F
08/15 10:08, 4F
→
08/15 10:09, , 5F
08/15 10:09, 5F
→
08/15 13:40, , 6F
08/15 13:40, 6F
→
08/15 13:46, , 7F
08/15 13:46, 7F
→
08/15 14:11, , 8F
08/15 14:11, 8F
→
08/15 14:12, , 9F
08/15 14:12, 9F
→
08/15 15:02, , 10F
08/15 15:02, 10F
→
08/15 15:04, , 11F
08/15 15:04, 11F
→
08/15 15:04, , 12F
08/15 15:04, 12F
→
08/15 15:05, , 13F
08/15 15:05, 13F
→
08/17 21:28, , 14F
08/17 21:28, 14F
→
12/02 18:56, , 15F
12/02 18:56, 15F