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

No. successes z-score p-value

3531 0.3653 0.357445
3553 1.3699 0.085365
3559 1.6438 0.050105
3536 0.5936 0.276387
3547 1.0959 0.136563
3513 -0.4566 0.676028
3494 -1.3242 0.907282
3558 1.5982 0.055002
3527 0.1826 0.427537
3521 -0.0913 0.536383

Square side=100, avg. no. parked=3533.90 sample std.=20.01

p-value of the KSTEST for those 10 p-values: 0.155137