The life table data for the Dall mountain sheep indicate that at age 7-8 years, 69 sheep per 1,000 sheep will die while 640 per 1,000 sheep will survive into the next year.What is the mortality rate (per 1,000) for this age group?

Question

Quizplus · Accepted Answer

Mortality rate is the number of individuals dying per unit of time and is calculated by subtracting the survival rate from 1 and multiplying by 1,000. Therefore, mortality rate for age 7-8 years is (1 - 0.64) x 1,000 / 69 = 107.8.

The Life Table Data for the Dall Mountain Sheep Indicate