If the proportion of an African population that are susceptible to Malaria is 0.37, what proportion of the population are affected with Sickle Cell Anemia? A. 0.18 B. 0.63 C. 0.11 D. 0.154 E. 0.255 Solution Proportion of population susceptible to malaria= p2= .37 so p= 0.608 since p+q=1, so q=1-0.608=0.392 proportion of the population affected with Sickle Cell Anemia= q2+2pq=0.3922+(2*0.608*0.392) =0.154+0.477 =0.631 So the answer is option B.