Frequency of the letters of the alphabet and double letters.  Source: unknown

     Letters                                     Double Letters
     =======                                     ==============
Alphabetical   By Frequency                Alphabetical   By Frequency
A    73        E   130                     AA     7       EE   326
B     9        T    93                     BB     7       SS   277
C    30        N    78                     CC    52       TT   131
D    44        R    77                     DD    33       MM   126
E   130        I    74                     EE   326       OO   125
F    28        O    74                     FF   108       FF   108
G    16        A    73                     GG    20       PP   103
H    16        S    63                     HH     2       RR    97
I    74        D    44                     II    10       NN    88
               mean = 38                   JJ     0       LL    78
J     2        H    35                                    mean = 73
K     3        L    35                     KK     4       CC    52
L    35        C    30                     LL    78       DD    33
M    25        F    28                     MM   126       GG    20
               median                                     median
N    78        P    27                     NN    88       II    10
O    74        U    27                     OO   125       BB     7
P    27        M    25                     PP   103       AA     7
Q     3        Y    19                     QQ     0       UU     6
R    77        G    16                     RR    97       UU     5
S    63        W    16                     SS   277       KK     4
T    93        V    13                     TT   131       ZZ     2
U    27        B    19                     UU     6       YY     2
V    13        X     5                     VV     1       HH     2
W    16        K     3                     WW     0       VV     1
X     5        Q     3                     XX     5       WW     0
Y    19        J     2                     YY     2       QQ     0
Z     1        Z     1                     ZZ     2       JJ     0



Frequency of letters of 16,410 words of newspaper text.  Source: unknown

     Final Letters                               Initial Letters
     =============                               ===============
Alphabetical   By Frequency                Alphabetical   By Frequency
A   480        E  3325                     A  1802        T  2614
B    25        S  2077                     B   757        A  1802
C   107        D  1649                     C   918        S  1213
D  1649        N  1592                     D   459        O  1176
E  3325        T  1587                     E   410        I   922
F   744        R   906                     F   666        C   918
G   463        Y   903                     G   293        W   833
H   407        O   745                     H   636        P   768
I    72        F   744                     I   922        B   757
J     6        L   599                     J    95        F   666
K   148        A   480                     K    88        H   636
L   599        G   463                     L   348        M   578
M   220        H   407                     M   578        R   513
N  1592        M   220                     N   401        D   459
O   745        W   166                     O  1176        E   410
P    84        K   148                     P   768        N   401
Q     1        C   107                     Q    31        L   348
R   906        P    84                     S  1213        U   224
S  2077        I    72                     S  1213        U   224
T  1587        X    34                     T  2614        Y   126
U    29        U    29                     U   224        V   100
V    15        B    25                     V   100        J    95
W   166        V    15                     W   833        K    88
X    34        J     6                     X    10        Q    31
Y   903        Z     5                     Y   126        X    10
Z     5        Q     1                     Z     6        Z     6
