Calculating the mean

Guilherme observed the number of minutes his dormmates spent on social media sites while they were at the library. He reported his data in the following table. Dormmate | Number of minutes on social media - | :-: Vera | $13$ Timothy | $0$ Manueala | $14$ Khaled | $36$ Yash| $18$ Fernanda| $12$ **Find the mean number of minutes on social media.** [[☃ numeric-input 1]] minutes