00363    a2200133   4500020001500000082001500015100002400030245003000054260004400084300001500128650001600143650002800159650004200187  a0749260823  a519.5bOPE  aThe open university  aLiving with 6 b numeracy  aKeynesbThe open universityc1991g1992  a52p.c30cm  aMathematics  aStatistical mathematics  aProbabilities and applied mathematics