There is a sailor.

He stands in the middle of an NxN pier.  If N is an odd number, round down.
For example, he stands in the middle of a 5x5 pier, at (2,2).
Or he stands in the middle of an 8x8 pier, at (4,4).

Every second, he takes on step in a cardinal, random direction.
No diaganals. So if he's at (4,4) he might end up at (3,4),(5,4),(4,3) or (4,5).

How many seconds on average does it take for him to fall of the pier?
My code says
Pier Size	Number of Steps
Pier Size	Number of Steps
1            1.0
2            2.006
3            4.392
4            6.623
5            10.709
6            13.914
7            19.57
8            22.798
9            29.398
10           35.451
11            42.256
12            49.965
13            58.549
14            64.213
15            71.08
16            86.193
17            94.714
18            105.778
19            117.45
20            129.006
21            148.863
22            153.378
23            169.967
24            179.62
25            200.02
26            215.258
27            233.548
28            245.133
29            259.873
30            275.964
31            312.246
32            327.015
33            338.329
34            376.462
35            394.458
36            395.286
37            414.64
38            439.459
39            455.921
40            507.465
41            509.563
42            550.057
43            585.067
44            591.143
45            625.037
46            634.699
47            678.792
48            730.647
49            749.269

Points:
25 - Can simulate one sailor one time.
30 - Can get an average for 1,000 sailors for one pier size.
30 - Can produce a table of averages for many pier sizes.
1 - Prints the table at least as nice as shown above.
7 - Can draw a graph
7 - Can fit a best-fit line
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100 - Total