The staff responsible for the calculations of probability of losses in insurance is the

The staff responsible for the calculations of probability of losses in insurance is called an Actuary. An Actuary is a professional who specializes in risk management and uses mathematical and statistical methods to analyze the likelihood of future events, particularly those related to insurance. They evaluate risks and uncertainties associated with insuring individuals or organizations against loss or damage and determine the appropriate premiums to be charged. Actuaries are employed in various industries, including insurance, finance, healthcare, and government. In insurance companies, actuaries play a crucial role in setting insurance rates, designing insurance policies, and managing the financial risks associated with insurance operations. Therefore, the correct option is "Actuary."