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

No. successes z-score p-value

3582 2.6941 0.003529
3551 1.2785 0.100530
3521 -0.0913 0.536383
3518 -0.2283 0.590298
3516 -0.3196 0.625377
3588 2.9680 0.001499
3480 -1.9635 0.975204
3510 -0.5936 0.723613
3523 0.0000 0.500000
3508 -0.6849 0.753306

Square side=100, avg. no. parked=3529.70 sample std.=32.19

p-value of the KSTEST for those 10 p-values: 0.158177