In a life table, the number of individuals alive at the beginning of the `1^(st)` year interval is 800. During this interval, 200 individuals die. The death rate for this interval is

If 4 individuals in a laboratory population of 40 fruitflies died during a specified time interval (i.e., a week), the death rate in the population during that period is

The excess of births over deaths in a year per 1000 individuals is called growth rate

The excess of births over deaths in a year per 1,000 individuals is called growth rate.

Give the term for the number of deaths per 1,000 individuals of a population in a year under the existing conditions.

true or false the excess of birth covid deaths in a year per 1000 individuals is called growth rate.

The number of solution of the equation |sin x|=|x-1| in the interval [0,pi]

A particle of mass m, initially at rest, is acted on by a force F=F_0{1-((2t-T)/T)^2} during the interval 0lt tlt T . The velocity of the particle at the end of the interval is :

A body freely falls from a certain height onto the ground in a time 't'. During the first one third of the interval it gains a kinetic energy Delta K_(1) and during the last one third of the interval, it gains a kinetic energy Delta K_(2) . The ratio Delta K_(1) : Delta K_(2) is