急! F6 Dispersion 1題 #9

(b)
將計算機的 Mode change to SD

the initial s.d.
1;4 M+
2;16 M+
3;20 M+
4;16 M+
5;18 M+
6;4 M+
7;4 M+

shift 2 2 EXE

so the initial s.d. =1.5

the after s.d.
1;4 M+
2;16 M+
3;20 M+
4;16 M+
5;18 M+
6;4 M+
7;3 M+

shift 2 2 EXE
so the after s.d. = 1.451339458

change in s.d = the initial s.d- the after s.d
= 0.048660542
= 0.0487

2014-02-24 19:24:44 補充：
(b)
將計算機的 Mode change to SD

the initial s.d.
1;4 M+
2;16 M+
3;20 M+
4;16 M+
5;8 M+
6;4 M+
7;4 M+

shift 2 2 EXE

so the initial s.d. =1.5

the after s.d.
1;4 M+
2;16 M+
3;20 M+
4;16 M+
5;8 M+
6;4 M+
7;3 M+

shift 2 2 EXE
so the after s.d. = 1.451

change in s.d = the initial s.d- the after

2014-02-24 19:25:36 補充：
= 0.048543884
=0.0485

Bid, 你用哪一部計算機？

你答 (a) 的時候輸入了：
4 個 1
16 個 2
20 個 3
16 個 4
8 個 5
4 個 6
4 個 7　得出 s.d. = 1.5

(b) 部 你把 7 的 frequency 由 4 改 3 可得 s.d. = 1.451456116

Change = 1.451456116 - 1.5 = -0.048543884