FREQUENCY
P ~ f ~’ t\) *rl H A-i 'p* (U i> ß rft CD
to 10 P< (/) tuO-P o ft0 0-P N
o (d P-, p o-h-h c a-H i; pu
o ft o rö.p-pip-p^-H cö .c! ^ o
Viy VL> •1—1 I 1 »n r^H
ft ft ¡3 O ^ -P
•<—I *i—I K*»*r-| id ri-i LL>
P'np cn ^ -ft -P -P pi,
HISTOGRAM FOR PROBLEM WN 51