Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: What statistics can tell us about strategy in tennis   In this paper we analyse tiebreak results from some tennis players in order
to investigate whether we are able to identify some strategy in this crucial
moment of the game. We compared the observed results with a binomial
distribution considering that the probabilities of winning or losing a point
are equal. Using a $\chi^2$ test we found that, excepting some players, the
greatest part of the results agrees with our hypothesis that there is no hidden
strategy and the points in tiebreaks are merely aleatory.

15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc