51 3) The probability that there is a mutation in gene 1b60 depends on whether there is a mutation in gene Ub20. If Ub20 is mutated, then there is a 80% chance that 1b60 is mutated. If Ub20 is not mutated, then there is a 20% chance 1b60 is mutated. Ub20 is mutated in 35% of the population. a) What is the probability that 1b60 is mutated in a person selected at random from the population. Show all equations and work. b) What is the probability that 1b60 is not mutated in both people selected at random from the population has a mutation in 1b60. Show all equations and work. c) What is the probability the 1b60 is mutated in at least one of the two people in (b)