The age of children in kindergarten on the first day of school is uniformly distributed between 4.87 and 5.85 years old. A first time kindergarten child is selected at random. Round answers to 4...

The age of children in kindergarten on the first day of school is uniformly distributed between 4.87 and 5.85 years old. A first time kindergarten child is selected at random. Round answers to 4 decimal places if possible.

I JUST NEED HELP ON #3 AND #5

1. The mean of this distribution is


2. The standard deviation is


3. 
   The probability that the the child will be older than 5 years old?
   


4. The probability that the child will be between 5.17 and 5.57 years old is


5. 
   If such a child is at the 65th percentile, how old is that child? years old.