Definition of "Law of large numbers"

Nora  Sienra real estate agent

Written by

Nora Sienraelite badge icon

Chateaux Realty

Mathematical premise stating that the greater the number of exposures, (1) the more accurate the prediction; (2) the less the deviation of the actual losses from the expected losses (X - x approaches zero); and (3) the greater the credibility of the prediction (credibility approaches 1). This law forms the basis for the statistical expectation of loss upon which premium rates for insurance policies are calculated. Out of a large group of policyholders the insurance company can fairly accurately predict not by name but by number, the number of policyholders who will suffer a loss. Life insurance premiums are loaded for the expected loss plus modest deviations. For example, if a life insurance company expects (x) 10,000 of its policy-holders to die in a particular year and that number or fewer actually die (X), there is no cause for concern on the part of the company's actuaries. However, if the life insurance company expects (*) 10,000 of its policyholders to die in a particular year and more than that number dies (X) there is much cause for concern by actuaries.

image of a real estate dictionary page

Have a question or comment?

We're here to help.

*** Your email address will remain confidential.
 

 

Popular Insurance Terms

Insurance transactions conducted across national boundaries. Such transactions occur when the insurance company sells insurance outside the country of the company's domicile. ...

Time frame during which an annuitant makes premium payments to an insurance company. The obligations of the company to the annuitant during this period depend on whether a pure annuity or ...

Organization that underwrites insurance policies. There are two principal types of insurance companies: mutual and stock. A mutual company is owned by its policy owners, who elect a board ...

Act by a person who is terminally ill of cashing in a life insurance policy to pay for the necessary associated illness, medical expenses, and final wishes. This terminally ill person ...

Coverage that will indemnify the insured for the expenses, up to the limits of the policy, if a building is damaged by a peril such as fire, and zoning requirements and/or building codes ...

Detail showing distribution of property coverages written by an insurance company. Illustrates a potential danger of concentration of insured risks. ...

Entitlement of a participant in an employee benefit insurance plan to receive benefits regardless of his or her employment status. ...

Under a general liability policy, a claim by an employer arising when an employee terminated by a supervisor without authority or just cause brings suit against the employer. Such a claim ...

Complete coverage for hospital and physician charges subject to deductibles and coinsurance. This coverage combines basic medical expense policy and major medical policy. ...

Popular Insurance Questions