[Rd] Are r2dtable and C_r2dtable behaving correctly?
pdalgd at gmail.com
Fri Aug 25 19:15:02 CEST 2017
> On 25 Aug 2017, at 12:04 , Peter Dalgaard <pdalgd at gmail.com> wrote:
>> There are three possible matrices, and these come out in proportions 1:4:1, the one with all cells filled with ones being
>> most common.
> ... and
>  0.1666667 0.6666667 0.1666667
>> dhyper(0:2,2,2,2) *6
>  1 4 1
> so that is exactly what you would expect.
And, incidentally, this is the "statistician's socks" puzzle from introductory probability:
A statistician has 2 white socks and 2 black socks. Late for work a dark November morning, he puts on two socks at random. What is the probability that he goes to work with different colored socks?
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Office: A 4.23
Email: pd.mes at cbs.dk Priv: PDalgd at gmail.com
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