Gamma distribution
2
X
Y
30
 0 0
 1 0
 2 0
 3 0
 4 0
 5 0
 6 0.513417119
 7 2.108777105
 8 3.654052647
 9 4.446940878
 10 4.459249168
 11 3.956178
 12 3.225421955
 13 2.471910397
 14 1.807010337
 15 1.272633801
 16 0.869664725
 17 0.579679421
 18 0.378394266
 19 0.242643657
 20 0.153224763
 21 0.095474078
 22 0.058795303
 23 0.035833046
 24 0.021637016
 25 0.012956774
 26 0.007700787
 27 0.004545856
 28 0.002666868
 29 0.001555686