ABSTRACT

It is not uncommon to hear the term probability used in day-to-day conver­ sation. Two friends, planning a golf game tom orrow , may ponder the ques­ tion: What is the probability o f rain tom orrow ? A young man o f 25, having just paid the premium for his retirement insurance, may question as to the probability of his living to age 65 so that he may realize its benefits. After just paying an enormous m edical bill for the correction o f a slipped d isc, a patient enquires of his doctor: nWhat is the probability that I will again need this kind of operation?"