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全部话题 - 话题: standard
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s**********8
发帖数: 25265
1
来自主题: MedicalDevice版 - International Organization for Standardization
The International Organization for Standardization (French: Organisation
internationale de normalisation, Russian: Международная орг
анизация по стандартизации, tr. Mezhdunarodnaya
organizaciya po standartizacii),[1] widely known as ISO, is an international
standard-setting body composed of representatives from various national
standards organizations. Founded on February 23, 1947, the organization
promulgates worldwide proprietary industrial and commercial standards. It
has its headquarters in ... 阅读全帖
l****z
发帖数: 29846
2
May 8, 2014 - 6:36 PM
By BOB MOEN, Associated Press
CHEYENNE, Wyo. (AP) — Wyoming, the nation's top coal-producing state, is
the first to reject new K-12 science standards proposed by national
education groups mainly because of global warming components.
The Wyoming Board of Education decided recently that the Next Generation
Science Standards need more review after questions were raised about the
treatment of man-made global warming.
Board President Ron Micheli said the review will look into wh... 阅读全帖
k********8
发帖数: 7948
3
http://online.wsj.com/article/BT-CO-20120320-712102.html
--Federal Reserve Chairman Ben Bernanke defends country's break with gold
standard
--Gold standard can cause both inflations and deflations, Bernanke says
--Practical, policy problems with gold standard
(Updated first paragraph, adds political context in the second paragraph and
comments on China in the seventh and eighth paragraphs and his response to
a student in the 11th and 12th paragraphs.)
By Kristina Peterson
Of DOW JONES NEWS... 阅读全帖
L******k
发帖数: 33825
4
【 以下文字转载自 Education 讨论区 】
发信人: LXJSmonk (紫色心情的 LXJS NYC_monk), 信区: Education
标 题: CUNY-NYSIEB is hiring a Lead Writer of Bilingual Standards
发信站: BBS 未名空间站 (Sat Mar 31 20:25:35 2012, 美东)
Request for Applications for Lead Writer of Bilingual Standards
The CUNY-New York State Initiative on Emergent Bilinguals (CUNY-NYSIEB), a
project of the Research Institute for the Study of Language in Urban Society
(RISLUS) and the Ph.D. Program in Urban Education at the CUNY Graduate
Center, is looking for a ... 阅读全帖
L******k
发帖数: 33825
5
Request for Applications for Lead Writer of Bilingual Standards
The CUNY-New York State Initiative on Emergent Bilinguals (CUNY-NYSIEB), a
project of the Research Institute for the Study of Language in Urban Society
(RISLUS) and the Ph.D. Program in Urban Education at the CUNY Graduate
Center, is looking for a Lead Writer to help create Common Core Bilingual
Standards for New York State, by aligning the Native Language Arts (NLA) and
English as a Second Language (ESL) Standards with the Common C... 阅读全帖
a*****g
发帖数: 19398
6
Chicago Teachers Union votes to oppose Common Core Standards
The Chicago Teachers Union has voted to oppose the Common Core Standards, a
rigorous set of educational benchmarks implemented by Illinois law and in
many other states.
The union announced its House of Delegates voted Wednesday to urge the city
’s teachers to join the “growing national opposition to the Common Core
State Standards, saying the assessments disrupt student learning and consume
tremendous amounts of time and resources for ... 阅读全帖
a*****g
发帖数: 19398
7
Chicago Teachers Union votes to oppose Common Core Standards
The Chicago Teachers Union has voted to oppose the Common Core Standards, a
rigorous set of educational benchmarks implemented by Illinois law and in
many other states.
The union announced its House of Delegates voted Wednesday to urge the city
’s teachers to join the “growing national opposition to the Common Core
State Standards, saying the assessments disrupt student learning and consume
tremendous amounts of time and resources for ... 阅读全帖
a*****g
发帖数: 19398
8
Chicago Teachers Union votes to oppose Common Core Standards
The Chicago Teachers Union has voted to oppose the Common Core Standards, a
rigorous set of educational benchmarks implemented by Illinois law and in
many other states.
The union announced its House of Delegates voted Wednesday to urge the city
’s teachers to join the “growing national opposition to the Common Core
State Standards, saying the assessments disrupt student learning and consume
tremendous amounts of time and resources for ... 阅读全帖
a*****g
发帖数: 19398
9
Chicago Teachers Union votes to oppose Common Core Standards
The Chicago Teachers Union has voted to oppose the Common Core Standards, a
rigorous set of educational benchmarks implemented by Illinois law and in
many other states.
The union announced its House of Delegates voted Wednesday to urge the city
’s teachers to join the “growing national opposition to the Common Core
State Standards, saying the assessments disrupt student learning and consume
tremendous amounts of time and resources for ... 阅读全帖
a**m
发帖数: 184
10
laugh
lz was talking about standard error not standard error of the mean
standard error is an estimate of standard deviation
say, you cannot get the standard deviation of the height of chinese women,
cuz you simply cannot sample all of them
however, you can sample (btw, here "sample" refers to measure their height)
1000 of them and get the standard deviation, which, to be more technical,
should be called the standard error.
and this standard error is an unbiased estimate of the standard deviatio... 阅读全帖
a**m
发帖数: 184
11
laugh
lz was talking about standard error not standard error of the mean
standard error is an estimate of standard deviation
say, you cannot get the standard deviation of the height of chinese women,
cuz you simply cannot sample all of them
however, you can sample (btw, here "sample" refers to measure their height)
1000 of them and get the standard deviation, which, to be more technical,
should be called the standard error.
and this standard error is an unbiased estimate of the standard deviatio... 阅读全帖
l****z
发帖数: 29846
12
来自主题: USANews版 - Renewable Fools Standard
by Jed Babbin
Your car will get better mileage if the price of your Thanksgiving turkey
goes down, and my chain saw will start more easily. It all comes down to the
price of corn, and how much ethanol the federal "Renewable Fuel Standard"
mandates to be blended in gasoline.
The price of corn is going to go up sharply in the coming months because the
worst drought in fifty years has brought disaster to corn farmers.
According to the EPA, which has control of the Renewable Fuels Standard
created b... 阅读全帖
t*d
发帖数: 1290
13
有些时候文章中讲到 standard deviation 实际上指得是 mean 的 standard
deviation (也就是样本的 standard error),而不是样本的 standard deviation。
怎么样才能区分清楚他们讲的到底是mena 的 standard deviation 还是样本的
standard deviation?
顺便请教一下,meta-analysis 中,inverse-variant weighted 方法用的是 1/(
standard variation of samples) 还是 1/(standard deviation of mean)?我觉得
应该是后者,因为这样即考虑了样本的方差,也考虑的样本的大小。不知是否理解正确?
多谢!
d******e
发帖数: 7844
14
http://mathworld.wolfram.com/StandardError.html
There appear to be two different definitions of the standard error.
The standard error of a sample of sample size n is the sample's standard
deviation divided by sqrt(n). It therefore estimates the standard deviation
of the sample mean based on the population mean
这种有专门的称呼,是SEM。
The standard error of an estimate may also be defined as the square root of
the estimated error variance sigma^2 of the quantity,
自己看。这个是大家常说的定义。
你所说的“特殊东西”不外乎是一个empirical ... 阅读全帖
c*******a
发帖数: 466
15
前段时间官网reconditioned standard programs大降价(三个程式),就赶紧入了一
个(现在又涨回去了)。买完担心没有“清洗”程式会不够方便,于是又入了pro 750
。以下是一些简单的使用体会。
黑色颗粒问题:
两个型号均未发现黑色颗粒。其中standard program是手动打清水,750测了两次,手
动以及smoothie模式打清水。
底座:
我收到的standard program这款是6300型号,重量比750的底座要轻很多。
噪声:
standard program噪声大于750。
口感:
750细腻程度大于standard program。我做了两组对照实验,黄瓜胡萝卜汁,玉米汁。
都是用同一来源、同样份量的材料。虽然两者都还是能吃出渣,但750的细腻度体现在
口感非常轻盈,非常creamy。另外玉米汁的实验中,750肉眼看不到任何渣,standard
program的盖子上有一点点玉米残留,没有被打倒。
warranty:
reconditioned保修五年。新产品七年。保修期内均为全包,且两边的shipping免费。
清洁:
我的担心不是多余... 阅读全帖
t*d
发帖数: 1290
16
多谢大家的回复。
没想到 standard error 和 standard deviation 的定义在这个版上也会有争议啊。
比如一个服从标准正态分布变量的 standard deviation 就是 1。一个来自标准正态分
布的样本,如果把它的均数作为一个随机变量的话,它的 standard deviation 就是 1
/n^0.5,其中 n 为样本大小,对吧?那么这个均数的 standard deviation 也就是样
本的一个 standard error,对吧?由于样本均数是总体均数的一个 estimator,所以
我的理解是 standard error 就是 estimator 的deviation。
有些场合,比如meta-analysis 的文献中,很多提到用 inverse-variance-weighting
的方法。由于没有明确指明,我就不明白这个variance 用的是样本本身的variance,
还是estimator 的variance?inverse-variance-weighting 方法的中心思想就是根据
各个 study 的可靠性来做个加权... 阅读全帖
w*******y
发帖数: 60932
17
Its back! Priceline.com $4 off Standard Car and bigger per day! Possible $9
/day for standard car (PDX and other locations). YMMV
I got this notice from Priceline today where they will take $4 off your
daily rate for a week!
Last time I ordered a standard vehicle from Priceline I was able to rent a
standard for $13 a day (from Portland Airport) using the name your own price
and add Priceline's deal it would be $9. This makes a standard car $56/week.
Here are the details -
Every dollar counts wh... 阅读全帖
l****z
发帖数: 29846
18
【 以下文字转载自 GunsAndGears 讨论区 】
发信人: Commissar (柯宓同志), 信区: GunsAndGears
标 题: Operation Mountain Standard 让科州淹没在无数大弹匣中
发信站: BBS 未名空间站 (Thu Feb 28 14:09:07 2013, 美东)
When the Democratic-controlled Colorado State House last week passed a ban
on the sale of magazines that carry more than 15 rounds of ammunition,
Longmont resident Savant Suykerbuyk set to work on "Operation Mountain
Standard."
The operation -- a project that will take place March 16 at Boulder Gunsport
-- will involve exchanging gun ma... 阅读全帖
w**********1
发帖数: 97
19
新手,第一次报税
请问联邦税用了itemized deduction,加州州税可选择standard deduction吗?
第一次用turbotax软件,发现只有联邦税计算时让选择itemized deduction还是
standard deduction,州税是自动计算的,用了standard deduction.补交联邦税3824,
退州税7489.
第二次检查发现,有车辆的regristration fee漏了录入,返回重录,重录后发现需要
选择itemized deduction还是standard deduction,仍选择itemized deduction,发现
联邦税没变,但是州税计算自动选择了跟联邦一样的itemized deduction,退的州税少
了。补交联邦税3824,退州税7189.
第三次,发现差异后,我用另一部电脑,重装了turbotax,将信息录入,一并录入了
regristration fee,仍选择itemized deduction,系统在自动计算州税时默认
standard deduction,结果跟第一次一样补交联邦税3824,退州税74... 阅读全帖
C*******r
发帖数: 10345
20
When the Democratic-controlled Colorado State House last week passed a ban
on the sale of magazines that carry more than 15 rounds of ammunition,
Longmont resident Savant Suykerbuyk set to work on "Operation Mountain
Standard."
The operation -- a project that will take place March 16 at Boulder Gunsport
-- will involve exchanging gun magazines for donations to Rocky Mountain
Gun Owners, Colorado's largest in-state gun lobby. The purpose, according to
organizers, is to flood Colorado with "high-c... 阅读全帖
t****r
发帖数: 702
21
大哥,你得定义standard deviation of what?
Standard error: estimated standard deviation of a Statistic!
Sample standard deviation: estimated standard deviation of a population!
虽然同样是估计,但是他们针对的对象是不一样的,前者的估计目标是sampling
distribution的参数,后者估计的事一个variable的distribution 的参数。
c*****r
发帖数: 8227
22
“I believe that banking institutions are more dangerous to our liberties
than standing armies. If the American people ever allow private banks to
control the issue of their currency, first by inflation, then by deflation,
the banks and corporations that will grow up around [the banks] will deprive
the people of all property until their children wake-up homeless on the
continent their fathers conquered. The issuing power should be taken from
the banks and restored to the people, to whom it proper... 阅读全帖
c********r
发帖数: 424
23
又到填州税的时候了,为避免跟去年一样没有退税,反而又多交了近100刀悲剧重蹈,想搞明白自
己的税表问题:
2010年收到了州税department的notice,说我需要补交70刀,原因是:the amount claimed as
your standard/itemized deductions will be changed from $5700 to $0.00, because
nonresident aliens who are required to itemize deductions for federal purposes must
itemize deductions on their state return.
也就是说,本来是可以有5700刀standard deduction (相信你们也都有),现在因为什么鸟原因给
了。。。我同学跟我一样的都没有这个问题,就我倒霉。。打电话给state department,人家说
你在1040NR上的itemized deduction是federal的requirement,所以根据州税的要求你不能享受
5700刀的s... 阅读全帖

发帖数: 1
24
"如果 donation 的数量少于 standard deductible, 可以减免税吗?"
you can't do both standard deduction and itemized deduction at the same
time.
if donation 的数量少于 standard deductible, you better do standard deduction.

standard
r***u
发帖数: 241
25
来自主题: Virginia版 - standard/itemized deduction?
【 以下文字转载自 TAX 讨论区 】
发信人: royhu (CSer), 信区: TAX
标 题: standard/itemized deduction?
发信站: BBS 未名空间站 (Tue Apr 14 22:49:14 2009), 转信
我在填州税时,说 You must claim the same type of deductions (standard or
itemized) as you claimed on your federal return.
是不是1040NR/1040NR-EZ只能填itemized deduction,没有standard deduction的选择?
这样的话,填州税时,也只能按itemized deduction了?可是如果按照itemized,
deduction为0,而如果选standard,可以减去3000多。我前几年没想那么多,以为我没
有逐项的申请免税,所以都是按照standard来的,是不是我弄错了?
h*********o
发帖数: 151
26
来自主题: Statistics版 - standard deviation v.s. standard error
问一个简单的统计问题哦,standard deviation 和 standard error究竟有什么差别阿
?只是说standard error是estimated standard deviation 么?
再来,如果我现在做CI,一般有公式 95% Limit = estimate +/- s.e.*critical
value.
如果是假设normal distribution, critical value = 1.96.
但是如果我假设estimate是服从一个复杂的分布,而critical value只能用bootstrap
估计的话,那么 95% Limit = estimate +/- bootstrapped s.e.,这里的应该是s.e.
还是s.d.呢?
d******e
发帖数: 7844
27
是你弄混了。standard deviation是要知道population density的,而density是
unknown的,所以只能用standard error来估计。
你给的这个wiki的链接无非就是换个说法而已。The standard error is the standard
deviation of the sampling distribution of a statistic。 所谓的sampling
distribution,就是population density的一个empirical estimator罢了。
w*******y
发帖数: 60932
28
AVEXIR AVD3U16000902G-2SW Standard 4GB ( 2GB x 2 ) 240-pin DDR3 1600mhz non-
ECC desktop memory module $19.99 f/s AC
$10 OFF with Coupon Code "AVEXIR10" (Expires 7/22/2011)
Link:
http://www.mwave.com/mwave/SKUSearch.asp?px=DS&scriteria=BA4204
Description:
Backed with Avexir IC Sorting Technology (AIST), it unleashes the
performance within! Pre-screened only the best memory IC and components for
Avexir Standard Series, Standard series delivers rock-solid stability and
highest compatibility at... 阅读全帖
C*******O
发帖数: 147
29
【 以下文字转载自 Statistics 讨论区 】
发信人: CAEFIMOTO (CXO), 信区: Statistics
标 题: How to calculate overall standard deviation for these two cases?
发信站: BBS 未名空间站 (Wed Jan 5 09:15:49 2011, 美东)
Case 1:
There is only 1 sample with 3 tests.
Test 1, test points=n1, mean=mu1, standard deviation=s1;
Test 2: n2, mu2, s2;
Test 3: n3, mu3, s3.
How to calculate the overall standard deviation for this case?
Case 2:
There are 2 samples, each has 3 tests like Case 1. How to calculate overall
standard deviation for this ... 阅读全帖
g*********9
发帖数: 1285
30
来自主题: Stock版 - Standards of Safety - by Graham
一定要看完最后一句话。
The concept of safety can be really useful only if it is based on something
more tangible than the psychology of the purchaser. The safety must be
assured, or at least strongly indicated, by the application of definite and
well-established standards. It was this point which distinguished the bank-
stock buyer of 1912 from the common-stock investor of 1929. The former
purchased at price levels which he considered conservative in the light of
experience; he was satisfied, from his kno... 阅读全帖
s******g
发帖数: 437
31

这个帖子再顶起来。程序报税的自动填11900, 而税表的旁边确实写着Standard
Deduction for “Married filing jointly or Qualifying widow(er),$10,900”。
相信程序是对的。google搜索,看见一个说法是:
Property Tax Deduction.
The new law extends an additional standard deduction for real property taxes
for non-itemizers through 2009. Congress initially authorized a maximum $
500 additional standard deduction ($1,000 for joint filers) last year but
limited it to the 2008 tax year.
The deduction is in addition to the standard deduction, not an above-the-
li
r***u
发帖数: 241
32
来自主题: TAX版 - standard/itemized deduction?
我在填州税时,说 You must claim the same type of deductions (standard or
itemized) as you claimed on your federal return.
是不是1040NR/1040NR-EZ只能填itemized deduction,没有standard deduction的选择?
这样的话,填州税时,也只能按itemized deduction了?可是如果按照itemized,
deduction为0,而如果选standard,可以减去3000多。我前几年没想那么多,以为我没
有逐项的申请免税,所以都是按照standard来的,是不是我弄错了?
w**********1
发帖数: 97
33
昨天收到联邦补税通知
IRS补税通知:由于itemized deduction计算有误,经IRS重新计算,选用standard
deduction,需补交4000多刀。
说说基本情况,LD 2012年是nonresident身份报的税,州税退回3000多刀。
2013是用resident身份报的税,选择了itemized deduction,共抵减2013年W2中州税
18000多刀。
IRS的补税信选用standard deduction,抵减6100刀。
收到信后,战战兢兢,经仔细研究,发现原来报的税即使用itemized deduction也有误
,Form1040中itemized deduction,抵减2013年W2中州税18000多刀,没有将2012退回
的州税3000多刀从其中扣除,扣除后itemized deduction应为15000多刀。
问题如下:
1、如何写信说明选用itemized deduction,而不是standard deduction,因为
itemized deduction能抵减15000多刀,而standard deduction只抵减610... 阅读全帖
j****e
发帖数: 1192
34
来自主题: Immigration版 - IEEE Standard Member 可以claim member吗?
我说的不是基本的standard member
在standard里面的member有基本什么都不干的
也有就是在work group里面写standard的,这些写standard的也不能claim membership
吗?我感觉我们这个group里面都是业界的牛人啊
membership的要求这么高啊。。。
a*o
发帖数: 19981
35
http://online.wsj.com/article/BT-CO-20110301-714533.html
WASHINGTON (Dow Jones)--Federal Reserve Chairman Ben Bernanke defended the
central bank's effect on the dollar Tuesday, pushing back at the idea that
policy makers should consider alternative proposals like the gold standard.
Bernanke, appearing before the Senate Banking Committee, was pressed by Sen.
Jim DeMint (R., S.C.) on the viability of a return to a gold-backed economy
or the idea of the Treasury Department issuing bonds payable in ... 阅读全帖
c*****5
发帖数: 463
36
来自主题: Dance版 - do u guys prefer standard or latin?
//hand hand i have exactly the same experience and feeling :) i enjoy
watching latin videos much more than standard videos. haha, also more
attracted to latin dancers than standard guys :P the only time I really
enjoy standard and its music is actually when i'm dancing standard and the
body feels so harmonic :)
z*i
发帖数: 58873
37
Jazz对乐器其实并没有严格的要求,什么乐器都可以演奏Jazz。但是有一些乐器由于历
史和乐器本身的特点,格外受到Jazz musician的偏爱。比如saxophone, trumpet,
cornet, trombone, clarinet, piano, bass, guitar, drum……等等。每一种乐器里
面又有细分,比如saxphone里面有alto, baritone, soprano, tenor。而且乐器也经常
被musicians不断发展,基本的drum,逐渐的变成了snare drum, 而且慢慢加入了pedal
,cymbals, electronics…… ,you name it.
音色,音高,速度,和弦,转音,变化…… 每种乐器,包括人声,都有非常显著和清
晰的特色。在Jazz里面,这些特色是被有意放大强调的。也就是说,相比古典音乐,特
别是symphony等形式的大规模的合作,Jazz更多体现的是小场子非常注意突出音乐家和
乐器个性的音乐形式。即便是在上世纪20,30年代so-called big-band era,演出时候
被强调和给听众留下深刻印... 阅读全帖
z*i
发帖数: 58873
38
Jazz对乐器其实并没有严格的要求,什么乐器都可以演奏Jazz。但是有一些乐器由于历
史和乐器本身的特点,格外受到Jazz musician的偏爱。比如saxophone, trumpet,
cornet, trombone, clarinet, piano, bass, guitar, drum……等等。每一种乐器里
面又有细分,比如saxphone里面有alto, baritone, soprano, tenor。而且乐器也经常
被musicians不断发展,基本的drum,逐渐的变成了snare drum, 而且慢慢加入了pedal
,cymbals, electronics…… ,you name it.
音色,音高,速度,和弦,转音,变化…… 每种乐器,包括人声,都有非常显著和清
晰的特色。在Jazz里面,这些特色是被有意放大强调的。也就是说,相比古典音乐,特
别是symphony等形式的大规模的harmony的合作,Jazz更多体现的是小场子里非常注意
突出音乐家和乐器个性的音乐形式。即便是在上世纪20,30年代所谓的big-band 时代
,演出时候被强调和给听众留下深刻... 阅读全帖
l***i
发帖数: 167
39
来自主题: EnglishChat版 - standard cantonese
Chinese languages
Standard Cantonese
The most important representative of the
Yüeh languages is Standard Cantonese
of Canton, Hong Kong, and Macau. It
has fewer initial consonants than Modern
Standard Chinese (p, t, ts, k and the
corresponding aspirated sounds ph, th,
tsh, kh; m, n, ; f, s, h; l, y), only one
medial semivowel (w), more vowels than
Modern Standard Chinese, six final
consonants (p, t, k, m, n, ), and two final
semivowels (y and w). The nasals m and
occur as syllables without a v
s******y
发帖数: 28562
40
你说的那个standard error of the mean和standard error 的概念差别是对的。
但是我想原楼主应该是在问standard error of the mean,因为在生物圈里
要么就是用SD,要么就是用SEM. 很少有人用你说的那个经典概念里的SE

)
of
s******y
发帖数: 28562
41
你说的那个standard error of the mean和standard error 的概念差别是对的。
但是我想原楼主应该是在问standard error of the mean,因为在生物圈里
要么就是用SD,要么就是用SEM. 很少有人用你说的那个经典概念里的SE

)
of
K****D
发帖数: 30533
42
来自主题: Mathematics版 - 弱智问题,有关standard deviation
假设一个变量x属于normal distribution, standard deviation是A, mean是X.
另一个变量y也是normal distribution, standard deviation是B, mean是Y.
X和Y不相关.
那么X*Y的standard deviation是多少? @_@
X+Y的standard deviation又是多少? @_@
p********a
发帖数: 5352
43
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karenuvm (猫猫) 于 (Thu Jul 17 21:06:24 2008) 提到:
一直A和B两个数和他们的standard deviation,求他们相除的standard deviation
比如
A = 64.79 (± 3.52)
B = 2.11 (± 0.30)
C = A/(100B)
这个C的standard deviation怎么求啊。
谢谢各位大牛举手之劳,帮个忙吧,谢谢
☆─────────────────────────────────────☆
karenuvm (猫猫) 于 (Thu Jul 17 22:06:53 2008) 提到:
自己顶一下,有没有知道的啊??
☆─────────────────────────────────────☆
Bighappy (快乐大大大) 于 (Thu Jul 17 23:23:08 2008) 提到:
你的问题都让人哭笑不得,一个数还有standard deviation?
☆───────────
k*********g
发帖数: 791
44
原始的deviation,即population standard deviation;
就是众所周知的那个;
假如有n个数据的话,
在计算population standard deviation的时候;
根号里面除“n”;
但是population standard deviation比较适合用于data complete的情况;
对于只能获得一部分data的实际情况;
藕们应该用sample standard deviation;
in which 根号里面除“n-1”;
假如同样是n个数据的话;
藕试了2、3个小时;
发觉其中有一步过不去;
推不出来;
故此请教各位大圣;
q**j
发帖数: 10612
45
反了吧?standard error是estimtor的standard deviation.
standard deviation一般是给普通或者original random variable的。
看看这个。
http://en.wikipedia.org/wiki/Standard_error_%28statistics%29
x**g
发帖数: 807
46
Hi, I need some help here.
I used PROC SURVEYMEANS and I got the standard error of mean. How can I get
the standard deviation of mean?
Here is part of the output from PROC SURVEYMENAS.
Number of Clusters 91
Number of Observations 34572
Sum of Weights 34312.5015
The standard error of mean is 0.007918.
(BTW, the standard deviation from PROC MEANS is 0.725688)
Thanks a lot!
l****z
发帖数: 29846
47
Published on CNS News http://www.cnsnews.com
Liberals’ Double Standard on Bathrooms, Boycotts, and Religious Freedom
If it wasn’t for double-standards, some liberals would have none at all.
That seems to be the lesson from the past few weeks, where liberals have
displayed three distinct forms of hypocrisy.
Liberal governors and mayors signed travel bans to North Carolina and
Mississippi, CEOs of major corporations pledged boycotts and relocations,
and Bruce Springsteen and Bryan Adams have can... 阅读全帖
s********i
发帖数: 17328
48
增加standard deduction就是给你养一到两个孩子的。多了不管。新的standard
deduction就是旧的standard deduction+personal exemption。同时取消child credit
而改成child care补助,鼓励双职工。

Child
h******o
发帖数: 807
49
【 以下文字转载自 Travel 讨论区 】
发信人: heroyoyo (heroyoyo), 信区: Travel
标 题: 5个大人旅游,是租Intermediate SUV还是Standard SUV了?
发信站: BBS 未名空间站 (Sun Jul 25 15:28:18 2010, 美东)
5个大人旅游,外加3个大行李箱,是租Intermediate SUV,还是Standard SUV了?
主要在城市里面转,有三段长途都是4小时,行程共8天。
Intermediate SUV 如:Dodge Nitro, 或 Ford Escape
Standard SUV, 如:JEEP GRAND CHEROKEE 2WD
两者的空间究竟差多少啊?
查了一遍,两者价格居然差好几百。给点建议,谢谢!
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