You have found the following ages (in years) of all $5$ porcupines at your local zoo: $\qquad16,\enspace 10,\enspace 5,\enspace 7,\enspace 13$ ** What is the average age of the porcupines at your zoo? What is the standard deviation? Round your answers to the nearest tenth. ** Average age: $\quad$ [[☃ numeric-input 1]] years old Standard deviation: $\quad$ [[☃ numeric-input 2]] years