JAMB UTME - Economics - 2018

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The mean is considered the best measure of central tendency because it is a balancing point in an observation. Central tendency refers to the tendency of data to cluster around a particular value in a distribution. The three measures of central tendency are mean, median, and mode. The mean is the arithmetic average of a set of data and is calculated by summing all of the values and dividing by the number of values in the set. The mean is the balancing point in an observation because it takes into account all the values in a set of data and calculates their average. It is the sum of all the values in the set divided by the total number of values. Because the mean is based on all the values in the data set, it is less likely to be affected by extreme values (outliers) than other measures of central tendency, such as the median or mode. In addition to being a balancing point in an observation, the mean has several other advantages as a measure of central tendency. For example, it is easy to calculate and is a useful tool for comparing different data sets. It can also be calculated from incomplete data, which is not the case with other measures of central tendency. Overall, the mean is the best measure of central tendency because it is a balancing point in an observation and takes into account all the values in a data set, making it less likely to be influenced by extreme values.

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Efficiency of labour may be defined as the ability of labour to increase output without increasing the quantity of labour. Increase in efficiency is usually expressed in terms of increase in output of labour within a shorter period of time without any fall in the quality of goods and services produced. Factors which affect efficiency of labour include Education and training, attitude to work, working conditions of workers. However, total population is not a factor that affects efficiency of workers.

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The factor of production that has the highest degree of mobility is labor. Labor refers to the human effort used in the production of goods and services. It includes both physical and mental work, such as the work done by factory workers, managers, doctors, and teachers. Unlike other factors of production, such as land and capital, labor is not fixed and can move from one job or industry to another. Labor mobility is the ease with which workers can move between different jobs or locations. It is influenced by factors such as education, skills, training, and the availability of job opportunities. For example, a person with a degree in computer science can easily move from one technology company to another, and a nurse can work in a hospital or a clinic. The mobility of labor is important for the efficient functioning of the economy because it allows workers to move to industries and locations where their skills are in demand, which increases their productivity and wages. It also helps businesses to find the talent they need to grow and innovate, and it enables regions to adapt to changing economic conditions. Therefore, labor mobility is an important aspect of economic growth and development.

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In the long run, all production factors are variable. This means that in the long run, a firm can adjust all of its inputs, including labor, capital, and resources, to produce the level of output it desires. Unlike the short run, where some production factors are fixed and cannot be changed, the long run allows firms to make changes to all of their inputs, such as investing in new technology or equipment, hiring or firing employees, and even moving to a new location. For example, in the short run, a bakery may only be able to increase its production by hiring more workers or working longer hours, as its oven and baking equipment are fixed. But in the long run, the bakery could invest in new, larger equipment to increase its production capacity, as well as relocate to a larger facility or even open new stores. Therefore, in the long run, all production factors can be adjusted, making them variable, while in the short run, some factors are fixed, making them less adaptable to changes in production levels.

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When a union is composed of workers with the same skill, it is called a craft union. This means that the union represents workers who have the same type of training or expertise in a particular craft or trade. For example, a union of electricians, plumbers, or carpenters would be considered craft unions. These workers often have specific skills that are honed through years of training and experience, and the craft union helps to protect their interests, such as negotiating better wages, benefits, and working conditions. By focusing on a specific skill, craft unions can advocate for their members' unique needs and ensure that they receive fair treatment in the workplace.

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The basic economic problems of society refer to the fundamental challenges that arise from the limited availability of resources and the unlimited wants and needs of individuals and society as a whole. The three main economic problems are scarcity, choice, and opportunity cost. Scarcity refers to the limited availability of resources, such as land, labor, and capital, relative to the unlimited wants and needs of individuals and society. This means that choices must be made about what to produce, how to produce it, and for whom it should be produced. The second economic problem is choice. Because resources are scarce, individuals and societies must make choices about what goods and services to produce and consume. This requires answering questions like "what to produce," "how much to produce," "how to produce it," and "for whom to produce it." These choices have important consequences for the allocation of resources and the distribution of income and wealth. The third economic problem is opportunity cost. This refers to the cost of choosing one option over another, as measured by the value of the best alternative foregone. In other words, every time we make a choice, we give up the opportunity to do something else with those resources. This means that the cost of any choice is not only the direct cost of producing or consuming a good, but also the opportunity cost of not using those resources in some other way. In summary, the basic economic problems of society include scarcity, choice, and opportunity cost. These problems arise from the limited availability of resources relative to the unlimited wants and needs of individuals and society, and require making choices about what to produce, how to produce it, and for whom it should be produced.

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The reward for land as a factor of production is rent. Rent is the payment made by a tenant or user of land to the owner of the land in exchange for the right to use the land. Land, as a factor of production, refers to the natural resources such as water, air, forests, minerals, and other resources that are used in the production process. Unlike labor and capital, land is considered to have a fixed supply, which means that its availability is limited. Therefore, the price of land is determined by the demand for it, which is influenced by factors such as location, natural resources, and economic activity. In summary, the reward for land is rent, which is the payment made by a tenant or user of land to the owner of the land in exchange for the right to use the land.

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The correct answer is a mixed economy. A mixed economy is an economic system that combines elements of both the public (government) and private sectors. In a mixed economy, the government and private businesses work together to create economic growth and promote social welfare. In a mixed economy, the government is responsible for providing essential services such as healthcare, education, and infrastructure. The private sector, on the other hand, is responsible for creating goods and services that meet the demands of the market. This type of economy allows for the benefits of both capitalism (private enterprise) and socialism (public enterprise) to coexist. It allows the government to regulate and control certain aspects of the economy, while still allowing the private sector to operate and innovate freely. Many modern economies around the world are considered mixed economies, including the United States, Canada, and the United Kingdom.

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Mean= ∑fx/∑f

  =(16+10+48+48+54+20+144)/(2+1+4+3+3+1+6)

  =340/20

  =17.0

By calculation, the mean of the distribution is not 18

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number of people who scored above 6=5+4+9+6

  =24

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The expression of cost in terms of alternative forgone is referred to as "Opportunity cost". Opportunity cost is the cost of an alternative that must be forgone in order to pursue a certain action or decision. In other words, it is the value of the next best alternative that you have to give up in order to choose a certain option. For example, if you have $100 and you can either buy a new book or go to a concert, the opportunity cost of buying the book is the value you would have received from going to the concert (and vice versa). If you choose to buy the book, you give up the experience of going to the concert, and if you choose to go to the concert, you give up the value you would have received from the book. Opportunity cost is an important concept in decision making, economics, and business, because it helps us understand the trade-offs that we make when we make choices with limited resources. By considering the opportunity cost of different options, we can make more informed and rational decisions about how to allocate our resources.

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The invisible item in the list is "Banking services". In economics, visible items are tangible goods that can be physically seen and touched, while invisible items are intangible services that cannot be physically seen or touched. Petroleum services, processed rice, and processed milk are all visible items because they are tangible goods that can be seen, touched, and measured. On the other hand, banking services are intangible and cannot be physically seen or touched. Examples of banking services include providing loans, managing savings accounts, facilitating transactions, and offering financial advice. Therefore, banking services are considered an invisible item because they are intangible and cannot be physically seen or touched.

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Liquid or current capital is the type of capital that is required for the day-to-day running of production activities. They are also changed from one form to another examples are finished goods and money.

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Frequent change of leadership of member state creates a difference in ideology and this is a major problem of ECOWAS

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The major form of migration that tends to create problems in developing countries is rural-urban migration. This refers to the movement of people from rural areas to urban areas in search of better economic opportunities and a higher standard of living. There are several reasons why rural-urban migration occurs. In rural areas, there may be limited job opportunities, low wages, and a lack of access to basic services such as healthcare, education, and clean water. In contrast, urban areas offer more job opportunities, higher wages, and better access to services. However, rural-urban migration can create several problems. Firstly, it can lead to overcrowding and strain on urban infrastructure, such as housing, transportation, and public services. This can result in poor living conditions for migrants and contribute to the spread of diseases. Secondly, rural-urban migration can lead to social problems such as crime, poverty, and inequality. Migrants may face discrimination and difficulty integrating into urban communities, which can exacerbate social tensions. Finally, rural-urban migration can have negative impacts on rural areas, as it can result in a loss of skilled workers and a decline in agricultural productivity. This can have serious consequences for food security and rural development. Overall, while rural-urban migration can provide benefits for migrants in terms of economic opportunities and access to services, it can also create significant challenges for both urban and rural areas.

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The establishment of industries in rural areas will help to reduce Urban-Rural migration. Urban-Rural migration refers to the movement of people from urban (city) areas to rural (countryside) areas in search of better living conditions, employment opportunities, and a lower cost of living. This migration often leads to overcrowding, strain on urban resources, and an increase in poverty in both urban and rural areas. When industries are established in rural areas, it creates employment opportunities for people living in those areas. This leads to an improvement in the standard of living of the local population, as they can find employment opportunities near their homes and do not need to move to urban areas. As a result, people are less likely to migrate from rural areas to urban areas in search of better opportunities, which helps to reduce Urban-Rural migration. In addition, the establishment of industries in rural areas also leads to an increase in economic activity in those areas, which stimulates local economies and creates new business opportunities. This, in turn, can lead to a reduction in poverty, an improvement in infrastructure and services, and an overall improvement in the quality of life for people living in rural areas.

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The reward for capital is interest. Capital refers to the money or assets that are used to invest in a business or enterprise. When someone invests their capital into a business, they expect to earn a return on their investment. The return on investment for capital is called interest. Interest is the amount of money paid by the borrower to the lender for the use of their capital. This can be in the form of regular interest payments or a lump sum at the end of the investment period. The interest rate is determined by various factors such as market conditions, inflation, and risk. Therefore, interest is the primary reward for capital.

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Mortgage banks give loans to investors on a long-term basis to build houses. When people want to buy a home, they may not have enough money to pay for it all at once. In this case, they can apply for a mortgage loan from a bank. A mortgage is a loan that is used to buy a property and is usually paid back over a period of several years. Mortgage banks specialize in giving out loans for the purpose of purchasing property, such as homes or other buildings. The loan is typically secured by the property being purchased, which means that if the borrower cannot repay the loan, the bank can take possession of the property to recoup its losses. Investors who want to build houses can also get mortgage loans from banks. In this case, the loan is used to finance the construction of the property, and the property serves as collateral for the loan. Overall, the primary purpose of mortgage banks is to give long-term loans to investors who want to buy or build houses. By providing this service, mortgage banks help to stimulate the housing market and make it easier for people to achieve their dreams of homeownership.

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Localization of industries refers to the concentration of firms or industries producing similar product in one area. As major firms concentrate in one area, other subsidiary firms that assist the major firms in the production of goods usually emerge.

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The form of utility that refers to the enhancement of a commodity's usefulness by moving it from a place where it has little utility to another area where its utility is higher is called "place utility." For example, a bottle of water may have low utility in a store shelf where there is an abundance of water, but it would have a higher utility in a desert where water is scarce. By moving the water bottle from the store shelf to the desert, the place utility of the water bottle is increased. On the other hand, marginal utility refers to the additional satisfaction or benefit that a person derives from consuming an extra unit of a good or service, while form utility refers to the value added to a commodity by transforming it into a more useful form, such as processing raw materials into finished products. Total utility, on the other hand, refers to the overall level of satisfaction or benefit that a person derives from consuming a particular quantity of a good or service.

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The policy by which the government encourages producers of export goods to produce and export more in order to earn more foreign exchange is called export promotion. This policy is aimed at increasing the volume and value of a country's exports, thereby increasing its foreign exchange earnings. Export promotion can take many forms, including providing financial incentives, such as subsidies and tax breaks, to producers of export goods. It can also involve providing training and support to help exporters improve their competitiveness, as well as promoting a country's exports through trade shows and other marketing initiatives. The goal of export promotion is to help a country's businesses increase their exports, create jobs, and boost the economy.

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The variance of a given data is the square of the standard deviation. Therefore, if the standard deviation of a given data is 8.2, the variance can be calculated as follows: Variance = Standard deviation^2 Variance = 8.2^2 Variance = 67.24 So, the variance of a given data with a standard deviation of 8.2 is 67.24.

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Y = C + I
Y = 50 + 0.75 + 45
Y - 0.75 = 50 + 45
Y (1 - 0.75) = 95
0.25y = 95
Y = 95/0.25
Y = 380

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Utility is an economic term introduced by Daniel Bernoulli referring to the total satisfaction received from consuming a good or service.

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The use of income and expenditure instruments or policies to control or regulate the economic activities of a country is known as Fiscal Policy. Fiscal policy involves the use of government spending and taxation to influence the economy's performance. For example, during a recession, the government may increase its spending to stimulate economic growth and create jobs. Alternatively, during a period of high inflation, the government may reduce its spending and increase taxes to reduce the amount of money in circulation and lower inflation. Fiscal policy can be used to achieve various economic objectives, such as stabilizing the economy, promoting economic growth, and reducing income inequality. It is an essential tool for governments to manage the economy and ensure its stability and growth over the long term.

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The Economic Commission for Africa (ECA) was set up by the United Nations (UN) in 1958. The ECA is one of the UN's five regional commissions and it was established to promote economic and social development in Africa. The ECA's primary objective is to provide research and policy analysis, as well as technical assistance, to African governments, with the goal of supporting their efforts to achieve sustainable and inclusive economic growth. The ECA also works to promote regional integration and cooperation among African countries, as well as to foster partnerships with other regions of the world. Therefore, the correct answer is the UNO.

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Capitalism or free market economy may be defined as the type of economic system in which the means of production are owned and controlled by private individuals that is; it is characterized by private ownership of the means of production. In this case, the private individuals play a greater role than the government in taking decisions on what to produce, how to produce, for whom to produce and the distribution of what has been produced.

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The privatization exercise in Nigeria is a move towards a market economy. A market economy is a type of economic system in which decisions regarding investment, production, and distribution are guided by the price signals created by the forces of supply and demand. In a market economy, resources are owned and controlled by individuals and private enterprises, rather than the government. In Nigeria's case, the privatization exercise involves the transfer of ownership and control of state-owned enterprises (SOEs) to private individuals or companies. This shift from state ownership and control to private ownership and control is a characteristic feature of a market economy. By reducing the role of the government in the economy, the privatization exercise in Nigeria is aimed at promoting competition, encouraging innovation, and improving efficiency in the management of these formerly state-owned enterprises.

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When a group data is involved, cumulative frequency is used. The formula will be: Median=[(N+1)/2]th

  For member of odd number items. That is, where N is odd

  Median=([N/2]th + [N/2 + 1]th)/2

  For member of odd number items. That is, where N is odd

  Solution:

  From the table, there are 20 members as indicated by the cumulative frequency. Since the members are odd (10) the median age will be ([N/2]th + [N/2 + 1]th)/2

  Median=([10/2]th + [10/2 + 1]th)/2

  =(5th + 6th)/2

  The 5th member is 3 and the 6th member is on 3

  Median=(3 + 3)/2

  =6/2

  Median = 3

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External economies of scale are economies of scale which a firm enjoys by virtue of being in an industry or environment where for instance, similar firms are located, as this question asks about. They are still economies of scale though, so technically B could also be correct. This is one of those tricky questions.

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To calculate the population density of Nigeria, we need to divide the total population of Nigeria by its total land area. So, Population density of Nigeria = Total population of Nigeria / Total land area of Nigeria Plugging in the values, we get: Population density of Nigeria = 180,000,000 / 923,768 sq km Solving this equation, we get: Population density of Nigeria = 195 people per sq km (rounded to the nearest whole number) Therefore, is the correct answer. Nigeria has a population density of approximately 195 people per square kilometer, which means that on average, there are 195 people living in every square kilometer of land in Nigeria. This number is relatively high compared to some other countries, but it is important to note that population density varies widely depending on factors such as geography, climate, and economic development.

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Both statements are correct. Climate and availability of water are important factors that can affect where people choose to live. Areas with a favorable climate and a reliable source of water are often more attractive to people, leading to higher population densities in those regions. On the other hand, areas with harsh climates or limited access to water may have lower population densities. Density of population refers to the number of people living in a given area. By understanding the population density in different regions, we can get a better understanding of how densely populated an area is and how the population is distributed over the land. This information is useful in a variety of fields, including urban planning, resource management, and public health.

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The term used to describe the number of people who are qualified to work and who offer themselves for employment is called the "Working Population". The working population refers to individuals who are of working age and are either employed or actively seeking employment. This group of people is considered to be the supply of labor in the economy and is an important factor in determining the overall health and stability of the labor market. It's important to note that the working population can be influenced by various factors such as migration, education levels, and the availability of job opportunities. Understanding the size and composition of the working population can provide valuable insights into the current state of the labor market and can inform decisions related to economic and labor policies.