Question

List t consists of 30 positive decimals, none of which is an integer, and the sum of the 30 decimals is s. The estimated sum of the 30 decimals, e, is defined as follows. Each decimal in t whose tenths digit is even is rounded up to the nearest integer, and each decimal in t whose tenths digit is odd is rounded down to the nearest integer;

Answer 1

Answer:

the study of statistics such as births, deaths, income, or the incidence of disease, which illustrate the changing structure of human populations.