Problem 2 From the following 3×3 conditional probability table (three genotypes and three phenotypes), find the corresponding joint probabilities and then calculate the proportions of the three phenotypes (the marginal probabilities of the phenotypes). Genotype Phenotype Marginal Black Gray White A₁A 0.80 0.10 0.10 0.25 A₁A₂ 0.15 0.80 0.05 0.50 A₂A₂ 0.15 0.15 0.70 0.25 Marginal Pr(Black) Pr(Gray) Pr(White)