Question 1
The median of the list
$$
\begin{gathered} n,\ n+3,\ n+4,\ n+5,\ n+6, \\ \ n+8,\ n+10,\ n+12,\ n+15 \end{gathered}
$$
is $10.$ What is the mean?
$$
\begin{gathered} n,\ n+3,\ n+4,\ n+5,\ n+6, \\ \ n+8,\ n+10,\ n+12,\ n+15 \end{gathered}
$$
is $10.$ What is the mean?