letter     probability
------     -----------
a          .082
b          .015
c          .028
d          .043
e          .127
f          .022
g          .020
h          .061
i          .070
j          .002
k          .008
l          .040
m          .024
n          .067
o          .075
p          .019
q          .001
r          .060
s          .063
t          .091
u          .028
v          .010
w          .023
x          .001
y          .020
z          .001