Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Statistical auditing and randomness test of lotto k/N-type games   One of the most popular lottery games worldwide is the so-called ``lotto
k/N''. It considers N numbers 1,2,...,N from which k are drawn randomly,
without replacement. A player selects k or more numbers and the first prize is
shared amongst those players whose selected numbers match all of the k randomly
drawn. Exact rules may vary in different countries.
  In this paper, mean values and covariances for the random variables
representing the numbers drawn from this kind of game are presented, with the
aim of using them to audit statistically the consistency of a given sample of
historical results with theoretical values coming from a hypergeometric
statistical model. The method can be adapted to test pseudorandom number
generators.

17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph