Mean 53.5  
SD 6.3
  Normal Distribution
h p(h<=t) p(t<h<t+0.5)
30.0 0.000 0.002
35.0 0.002 0.014
40.0 0.016 0.073
45.0 0.089 0.201
50.0 0.289 0.305
55.0 0.594 0.255
60.0 0.849 0.117
65.0 0.966 0.030
70.0 0.996 0.004
75.0 1.000   -0.305