a) Explain "death rate" in a population by taking a suitable example.
b) Write the other two characteristics which only a population shows but an individual cannot.
a) Death rate- It is expressed as the number of deaths to given population in a period of time e.g. if 8 fruitflies in a laboratory population of 40 due during a week, the death rate is `8/40=0.2` per week.
First , we convert the series into a discrete frequency distribution in ascending order as under.
`{:("Death Rate",10.4,10.5,10.6,10.7,10.9,11.1,11.3),("Frequency"," "1," "1," "5," "2," "2," "2," "1):}`
10.6 is the value with...
According to the equation, sample space
`S = {(H,H),(H,T),(T,1),(T,2),(T,3),(T,4),(T,5),(T,6)}`
In the above set, there are 8 elementary events, but all are not equally likely.
However, events (H,H) and (H,T) are...
Correct Answer - A
The number of ways in which 20 people can be divided into two equal group is
`n(S) = (20!)/(10! 10! 2!)`
The number of ways in which...
These questions have been set to test the student’s understanding of the text and their ability to interpret evaluate and respond to the themes/issues raised. Therefore, there can’t be just...
(a) (i) Manganese (Mn) shows highest oxidalion state of +7 with oxygen but with fluorin, it shows the highest of +4 because oxygen has the ability to form multiple bonds...
(i) Indian workers in Nepal are normal residents of India because they live in India and their centre of economic interest lies in India.
(ii) Indians working in the USA...
Birth Rate
Death Rate
(i) Birth rate refers to a number of births per 1000 of living population per year.
(i) Death rate refers to a number of deaths per 1000 of living...
