Actuarial credibility describes an approach used by actuaries to improve statistical estimates. The Actuarial Society of Bangladesh is the unique Professional Body of Actuaries in Bangladesh. Also included are actuaries and demographers. These two types of professionals, accountants and actuaries, have created a culture of being archrivals. The firms were primarily defined as benefit plan actuaries and human resources consultancies. Actuaries are professionals trained in this discipline. The cost of insurance is determined using mortality tables calculated by actuaries. The Joint Board administers two examinations to prospective Enrolled Actuaries. These figures were calculated by the Government Actuaries Department. Some South African universities are also accredited by the Institute and Faculty of Actuaries. The system is governed by the Institute of Actuaries of Australia. The historic interiors include a great hall, used by the Institute and Faculty of Actuaries. The American Institute of Actuaries was founded in 1909. The SOA has more than 30,000 actuaries as members. The President of the Institute and Faculty of Actuaries (IFoA) is Jules Constantinou.