The age of children in pre-K on the first day of school is uniformly distributed between 4.87 and 5.9 years old. A first time pre-K child is selected at random. Round answers to four decimal places if possible. 1. The standard deviation is____ 2. The probability that the child will be older than five years old is____ 3. The probability that the child will be between 5.07 and 5.67 years old is____ 4. If such a child is at the 5th percentile how old is the child_____years old