_________ is the number of deaths per thousand persons in a year.
The number of deaths in the population divided by the average population (or the population at midyear) is the crude death rate. A death rate can also be tabulated according to age or cause. Death rate is the ratio of total deaths to total population in a specified community or area over a specified period of time. The death rate is often expressed as the number of deaths per 1,000 of the population per year.