Q:

How do you calculate mortality rate?

A:

The mortality rate is calculated by taking all the deaths that occurred during a particular time period and dividing that number by the total size of the population during the same time frame. The resulting decimal is then multiplied by 1,000 or 100,000 to give a whole number.

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Mortality rates are usually calculated over the period of one year. As the size of a population may change significantly, the mid-year point is usually taken as a rough guide. Mortality rates are always displayed in the form of a whole number, usually in the hundreds, per 1,000 or 100,000 people. For example, a typical mortality rate is 896 deaths per 100,000 people.

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Related Questions

• A:

Calculate population growth rate by dividing the change in population for the time by the initial population and multiplying by 100. The number is expressed as a percentage.

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The four factors that can affect population size are fertility rate, mortality rate, immigration and emigration. Fertility rate and mortality rate are often grouped together as are immigration and emigration.

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The main cause of rapid population growth is when there are more births than there are deaths, which is referred to as a natural increase. Other causes of rapid population growth include an increase in food production and distribution, improvement in public health and the elimination of many diseases.