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

No. successes z-score p-value

3499 -1.0959 0.863437
3493 -1.3699 0.914635
3504 -0.8676 0.807188
3499 -1.0959 0.863437
3543 0.9132 0.180558
3513 -0.4566 0.676028
3490 -1.5068 0.934075
3541 0.8219 0.205562
3500 -1.0502 0.853193
3516 -0.3196 0.625377

Square side=100, avg. no. parked=3509.80 sample std.=17.78

p-value of the KSTEST for those 10 p-values: 0.032302