Suppose the weights of 3-month-old babies are normally distributed-baby boys with a mean of 14.2 pounds and a standard deviation of 1.9, and baby girls with a mean of 12.8 pounds and a standard deviation of 1.9. What proportion of 3-month-old baby girls will weigh between 12 and 13 pounds? (Round your answer to four decimal places.) A USE SALT You may need to use the appropriate appendix table to answer this question.