18 Few years ago, in a letter to "Dear Abby" a wife claimed to have given birth 300 days after a brief visit from her husband, who was serving in the Navy.What is the probability that her husband was the actual father of the baby? a 0.0301 b 0.0409 c 0.0472 d 0.0502

19 What middle interval (of days) includes 0.95 fraction of all pregnancies?Round the days to the nearest integer. a 243 297 b 241 299 c 239 301 d 237 303