A group of 6 students was asked, "How many hours did you watch television last week?" Here are their responses. 7,9,4,13,13,16
Find the mean number of hours for these students.
If necessary, round your answer to the nearest tenth.

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later