Under Hardy-Weinberg conditions, the frequency of the genotype abcd
(in this particular order) is simply $F_a \cdot F_b \cdot F_c \cdot F_d$$F_a \cdot F_b \cdot F_c \cdot F_d = 0.24\%$.
The probability of abcd
in any particularIf we don't consider the order is simply $24 * F_a \cdot F_b \cdot F_c \cdot F_d$, then we must ultiply the previous probability by 24. There are indeed 24 (=432*1) is the number of ways you can get this particular combination. The probability of abcd
in any particular order is therefore $24 \cdot F_a \cdot F_b \cdot F_c \cdot F_d = 5.76\%$.
You might want to have a look at the post Solving Hardy Weinberg problems