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Probability sample

probability sample

Each individual in the sample has a known, generally equal, chance of being selected.


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Re: Brain size=IQ level theory (Blacks vs Whites & Asians)

... MRI-measured-brain-size and IQ in 8 separate studies with a total sample size of 381 non-clinical adults. This correlation is about as strong ... that men evolved larger (more costly) brains because they enhance their probability of becoming socially dominant and thus more reproductively successful; ...

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by TJJ
Fri May 16, 2008 12:13 am
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 18
Views: 12554

help on correct descriptive statistics of a project

It’s going to be tough to get terribly good normal probability plots with such a small sample size. They look “OK” to my eye—but I warn you: what I am willing to accept and what your prof ...

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by blcr11
Thu Dec 06, 2007 6:19 pm
 
Forum: General Discussion
Topic: help on correct descriptive statistics of a project
Replies: 4
Views: 571

Some MCQs

... close relatives can be detrimental for which reason? it increases the probability that individuals homozygous for a recessive genetic disease allele ... by the ongoing substitution process populations, each carrying a sample of the species' polymorphisms, become isolated from one another selection ...

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by biology_06er
Tue Nov 13, 2007 2:25 am
 
Forum: General Discussion
Topic: Some MCQs
Replies: 3
Views: 1518

Kullback–Leibler divergence

... entropy") is where you have a probabilistic model - a probability distribution - and you want to contrast it with the distribution ... shall denote P, is real - it's what you'd approximate if you began to sample by rolling the die a bunch of times. The second distribution, which ...

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by G-Do
Wed Oct 18, 2006 3:06 am
 
Forum: Bioinformatics
Topic: Kullback–Leibler divergence
Replies: 4
Views: 1921

What's bad science? Read here

... primarily regarding identifying xenolyths that could corrupt the sample. Talk-origins refutation, citing the inability of the lab to date ... wrong. If it is never proven wrong, well then that just means that the probability of it being right has increased. Take the Law of Thermodynamics ...

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by AstusAleator
Fri Jan 27, 2006 9:55 pm
 
Forum: Evolution
Topic: What's bad science? Read here
Replies: 48
Views: 6053


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