Cystic fibrosis is an inherited recessive disorder that causes especially thick mucus to build up in the lungs and digestive tract. The mucus makes it difficult to clear microorganisms from the airways, so people with cystic fibrosis are prone to dangerous respiratory infections. Among Caucasians, about one in every 3000 newborns is affected by this condition. Determine the frequency of the cystic fibrosis allele among Caucasians. What proportion of this population would you expect to be heterozygous carriers of the cystic fibrosis allele ? Express your answer as a percentage including 2 significant digits. SHOW YOUR WORK TO OBTAIN FULL MARKS!