(Of 12000 tries, the average no. of successes should be 3523.0 with sigma=21.9)

No. successes z-score p-value

3520 -0.1370 0.554479
3527 0.1826 0.427537
3530 0.3196 0.374623
3521 -0.0913 0.536383
3523 0.0000 0.500000
3515 -0.3653 0.642555
3548 1.1416 0.126820
3531 0.3653 0.357445
3532 0.4110 0.340551
3544 0.9589 0.168804

Square side=100, avg. no. parked=3529.10 sample std.=9.90

p-value of the KSTEST for those 10 p-values: 0.176243