moctest

Hi Guys, Please help with this problem: The frequency of daltonism (XR) in males is 0.08 a) Calculate frequency of heterozygous females. b) What is the probability of mating of affected male with non-related heterozygous woman? c) What is the frequency of mating of affected male with heterozygous woman in the population? My Solution: a) 2pq = 2 (0.92) (0.08) = 0.1472 b) 2pq x q = (0.1472) (0.08) = 0.011776 c) I don't know what's the difference between (b) and © ???