Question

1, Explain the roles of mining sector in the Ethiopian economy and the major constraints of the sector.

2, What are the challenges and opportunities of young population in the world today and Ethiopian youth, what do you think for the advantage of manufacturing sector in order to solve youth unemployment.
3, Assume that a given country has the following population data. Total midyear population is 90,000,000; male population is 45%; total live birth is 3%; total death is 2%; infant mortality rate is 1%; adult population is 70% and life birth in age group 25-29 is 150,000 and women population in age group 25-29 is 800,000. Based on these data, answer the given questions: Find
A, crude birth rate (CBR)?
B, Find crude death rate (CDR)?
C, Find sex ratio?
D, Find ADR (Young and Old dependent)? E, Find IMR?
F, Age specific fertility ratio (ASFR) in age group 25-29?
G, Find natural increase rate (NIR)​

Answer 1

A. Crude birth rate (CBR):

CBR = (Number of live births / Total midyear population) x 1000

CBR = (0.03 * 90,000,000) / 90,000,000) x 1000 = 30 births per 1000 population

B. Crude death rate (CDR):

CDR = (Number of deaths / Total midyear population) x 1000

CDR = (0.02 * 90,000,000) / 90,000,000) x 1000 = 20 deaths per 1000 population

C. Sex ratio:

Sex ratio = (Number

of males / Number of females) x 100

Given that the male population is 45% and the female population is 55%:

Sex ratio = (45 / 55) x 100 = 81.82 (rounded to 2 decimal places)

D. Age dependency ratio (ADR):

ADR = (Number of young dependents + Number of old dependents) / Working-age population) x 100

Given that the adult population is 70% of the total midyear population:

Working-age population = Total midyear population - (Number of young dependents + Number of old dependents)

Since the data provided does not specify the number of young and old dependents, we cannot calculate the ADR.

E. Infant mortality rate (IMR):

IMR = (Number of infant deaths / Number of live births) x 1000

Given that the infant mortality rate is 1% and the total live births is 3% of the total midyear population:

Number of infant deaths = (0.01 * 90,000,000) = 900,000

IMR = (900,000 / 2,700,000) x 1000 = 333.33 (rounded to 2 decimal places)

F. Age-specific fertility ratio (ASFR) in the age group 25-29:

ASFR = (Number of live births in the age group 25-29 / Women population in the age group 25-29) x 1000

Given that the live births in the age group 25-29 are 150,000 and the women population in the age group 25-29 is 800,000:

ASFR = (150,000 / 800,000) x 1000 = 187.5 (rounded to 1 decimal place)

G. Natural increase rate (NIR):

NIR = (Crude birth rate - Crude death rate) / 10

Given that the crude birth rate is 30 and the crude death rate is 20:

NIR = (30 - 20) / 10 = 1

Therefore, the natural increase rate (NIR) is 1.