Birth weights of babies born to full-term pregnancies follow roughly a normal distribution. at meadowbrook hospital, the mean weight of babies born to full-term pregnancies is 7 pounds with a standard deviation of 14 ounces (1 pound = 16 ounces). dr. watts (who works at meadowbrook hospital) has four deliveries (all for full-term pregnancies) coming up during the night. assume that the birth weights of these four babies can be viewed as a simple random sample. what is the probability that all four babies will weigh more than 7.5 pounds?