Geography population and health

What is the difference between median and average?

• The average is the sum of all numbers divided by quantity of numbers, and the median is the mean.

• The average is the sum of all numbers divided by quantity of numbers, and the median is the "middle" value of all of your numbers, so you need to look at list as a whole.

• There is no difference.

• The median is the same as the mode, or the number that occurs the most often.

Which factor is most responsible for increasing life expectancy in many less industrialized nations?

• Declining birth rates

• Availability of health insurance

• Access to primary education

• Improved healthcare programs

What is life expectancy?

• The number of years needed for one to reach 60 years.

• The average number of years that people are expected to live in a country.

• The difference between the mortality rate and the death rate of a country

• What one expects to face in life.

Which factor is most directly related to the level of economic development of a country?

• High urban population/ Urbanization

• Fertility rate

• Mortality rate

• Religious diversity

World population distribution is highly uneven in which population density is higher on the coasts than the interior. One main reason for this pattern is due to

• access to trade routes and travel

• access to fishing

• access to fresh water sources

• the oceans act as a natural barrier

The infant mortality rate is

• the number of working-age people (ages 15 to 64) divided by the number of infants under the age of 1 who die in a society

• related to the maternal mortality rate

• the annual number of deaths of infants under 1 year of age, compared with total live births

• the crude death rate for children

The IMR is a good indicator of

• access to contraceptives in a society

• the quality and availability of overall health care in a society

• the size of the average family

• the total fertility rate

The Natural Increase Rate is

• the percentage by which a population grows in a year

• irrelevant to the doubling time of a population

• the same in the Gambia as it is in all countries of Africa

• the sum of the CBR and the CDR combined

Since 1980, nearly all of the world's NIR has been seen in

• highly developed countries

• moderately developed countries

• less developed countries

• major urban centers throughout the world

Physiological density is

• the total number of objects in a given area

• the ratio of farmers to arable land

• the number of people living in river valleys in a country

• the number of people per unit area of arable land