The ship Titanic sank in 1912 during its maiden voyage from England to New York City. A majority of the 1309 passengers perished in the sinking of the Titanic because of inadequate lifeboats. Most of the seats on the lifeboats went to the first-class passengers; passengers in the second and third class were less likely to survive.

Class
First-class	39.16	14.55
Second class	29.51	13.64
Third-class	24.82	11.96

To further examine the 323 first-class passengers, distribution of means out of the population data is created. On each trial, you randomly select the name of 5 first-class passengers, calculate their average age, record the average, then return the 5 names to the population. You repeat this process for a total of 35 times. Answer the three questions below to describe the characteristics of this distribution of means.

1. What is N?
2. What is _M?
3. What is _M?