Diseases I and II are prevalent among people in a certain population. It is assumed that10% of the population will contract disease I sometime during their lifetime, 15% will contract disease IIeventually, and 3% will contract both diseases.(a) Find the probability that a randomly chosen person from this population will contract at least onedisease.(b) Find the conditional probability that a randomly chosen person from this population will contract bothdiseases, given that he or she has contracted at least one disease.