# Yahoo奇摩 網頁搜尋

1. ### Estimation (Statistics) URGENT

...: Why the method with smaller sample size will give a more precise estimator? It is due to the "mean effect". For the same variance, if the mean is become...

分類：科學及數學 > 數學 2010年11月20日

2. ### Hard (20 points)

... in popular culture to a degree far greater than almost...other mathematical construct. It is , perhaps, the most common ground... on the latest, most- precise calculation of π (and related...

分類：科學及數學 > 數學 2010年09月29日

3. ### F.5A.MATHS

...: cos (y - x) = cos[-(x - y)] = cos(x - y). 2009-09-21 08:14:15 補充： To be more precise , u dot v = (magnitude of u)(magnitude of v) cos (angle between the 2 vectors...

分類：科學及數學 > 數學 2009年09月22日

4. ### Inverse function

... is x < 1/2. 2009-09-03 07:10:34 補充： To be more precise , x should be : 0 < x < 1/2 for y to be defined...

分類：科學及數學 > 數學 2009年09月03日

5. ### Measuring---absolute error

... is 2cm. 2009-06-17 11:37:57 補充： This ruler is not a precise /accurate instrument. Measurement made with this ruler is accurate to 2cm, in other words, the measure can only be corrected to 2cm...

分類：科學及數學 > 數學 2009年07月02日

6. ### statistic problem! help pls!

...than the time found in part (b). It is because moresamples are collected, so a more precise statistics can be found. Thatis, the sample mean is more tended to the population mean.

分類：科學及數學 > 數學 2009年06月19日

7. ### sequence Urgent!!!

... is as follows: -(10 - 1), 100 + 1, -(1000 - 1), 10 000 + 1, -(100 000 - 1) To be more precise , it is : (-1)[10 + (-1)], (-1)2[(10)2 + (-1)2], (-1)3[(10)3 + (-1)3], (-1)4...

分類：科學及數學 > 數學 2009年03月28日

8. ### A Question help me...

... fewer non-zero digits yet similar in magnitude. The result is less precise but easier to use. For example: 73 rounded to the nearest ten is 70...

分類：科學及數學 > 數學 2009年02月18日

9. ### Questions about Null Spaces...?

..., the statement is solved by lambda1=lambda2=...=lambda n=0. is not very precise . To improve it, replace the phrase " is solve by" by "has unique...

分類：科學及數學 > 數學 2008年12月14日

10. ### P = Np Conjecture (反)

...the algorithm can return false. 2008-03-11 20:21:32 補充： Let me be more precise and point to the paper. "Explanation: As we discussed earlier...

分類：科學及數學 > 數學 2008年03月14日