All the following are problems identified with agriculture in West Africa except
Land tenure system
Ignorance of the farmers
Use of crude implement
Provision of food for the teeming population
Correct answer is D
No explanation has been provided for this answer.
The law of variable proportions is also known as
Law of demand
Law of diminishing returns
Law of diminishing marginal utility
Law of returns to scale
Correct answer is B
The law of variable proportions is also known as the law of diminishing returns. It states that, when the quantity of one factor of production is increased, while keeping all other factors constant, it will result in the decline of the marginal product of that factor.
Use this above diagram to answer this question.
What is the median of the distribution?
5
4
3
2
Correct answer is C
sum = 2+5+2+1=10
median 10 ÷ 2 = 5th position
Re-arranging the numbers we have;
2,2,3,3,3,3,3,4,4,5
3+3 = 3
2
Use this above diagram to answer this question.
From the table, the mean of the distribution is
2.2
2.5
3
4.5
Correct answer is C
Mean refers to the mean or average that is used to derive the central tendency of the data in question. It is determined by adding all the data points in a population and then dividing the total by the number of points. The resulting number is known as the mean or the average.Thus we have;
1+2+2+2+3+4+5+5 = 24 ÷ 8 = 3
Which of the following is not an effect of the discovery of mineral resources in an area?
Increase in wealth
Overcrowding
Increase in crime rate
Under population
Correct answer is D
Under population exists when a population is too small, therefore unable to fully utilise the available resource endowments. This is not an effect of the discovery mineral resources in an area, in most cases, more people move to areas with rich natural resources.
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