Final answer:
A healthy infant's weight doubles in six months and triples in one year. Therefore, a one-year-old child should have an approximate weight of 14 pounds.
Step-by-step explanation:
According to research, a healthy infant's weight doubles in six months and triples in one year. Therefore, assuming normal development, a one-year-old child should have an approximate weight of 14 pounds. By two years old, their weight may have quadrupled, reaching between 20 and 40 pounds.