Žen je více.
Sum(Z)/Count(Z) = 20
Sum(M)/Count(M) = 30
(Sum(M)+Sum(Z))/(Count(Z)+Count(M)) = 24
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Sum(Z) = 20*Count(Z)
Sum(M) = 30*Count(M)
20*Count(Z) + 30*Count(M) = 24*Count(Z) + 24*Count(M)
6*Count(M) = 4*Count(Z)
6/4 = Count(Z)/Count(M)Tedy žen je o polovinu více než mužů.