Make a stem-and-leaf plot of the following test data:
$64,87,52,12,17,23,45,88,45,62,76,77,34,53,$ and $45$.

1. Find the mode.

   Answer (a):

   The mode is $45$. Remember to show your work!

2. Find the median.

   Answer (b):

   The median is $52$. Make sure to tell how you know this is true.