Display the name, the age, the sex and the
professional category of the "Leader" of the group : the one which
collects the maximum of affinity in descending order. The first of the
list is the "leader" of the group.
Display, for the leader, the score that he
obtained and the distribution by sex. This question can be useful, for
example, to check the "weight" of the variable Sexe in the score
obtained by the leader.