Statistical ready reckoner / by Gerard C. Taylor.

  • Taylor, Gerard C.
Date:
1913
Catalogue details

Licence: In copyright

Credit: Statistical ready reckoner / by Gerard C. Taylor. Source: Wellcome Collection.

    10/428
    Example 2.—In a population of 7,939 there were 24 deaths from epidemic diseases in one year. What was the epidemic death-rate per 1,000 of the population ? Refer to the population 7,939, the rate corresponding to 4 deaths is... ... '5038 and to 20 deaths is ... ... ... ... 2-5192 Adding these together we obtain ... ... 3-023 that is, the required rate. Example 3.—In a population of 9,274 there were 189 births during one year. What was the birth-rate per 1,000 of the popula- tion ? Refer to the population 9,274, the rate corresponding to 9 births is ... and to 80 {i.e., 8 X 10) births is and to 100 {i.e., 10 X 10) births is ... Adding these together we obtain that is, the required rate. •9704 8-626 10-782 20-3784 Example 4.-—In a population of 79,785 there were 1,936 births in one year. \Miat was the birth-rate per 1,000 of the population ? Populations are seldom ascertainable with absolute accuracy, and in any case an error of less than one per 1,000 in the estimation of a population is negligible for all practical purposes. We may, therefore, calculate the rate as if the population was 7,978, and divide the resultant rate by 10. In a population of 7,978, the rate corresponding to 6 births is ... and to 30 {i.e., 3 X 10) births is and to 1,900 {i.e., 19 X 100) births is -7520 3-760 238-15 Adding these together we obtain ... ... 242-662 and dividing this total by 10 the required rate is found, viz., 24-266.