Exercise : Solutions of Questions on Page Number : 89 Q1 :A measure of dispersion is a good supplement to the central value in understanding a frequency distribution. Comment. Answer : The study of the averages is only one sided distribution story. In order to understand the frequency distribution fully, it is essential to study the variability of the observations. The average measures center of the data whereas the quantum of the variation is measured by the measures of dispersion like range, quartile deviation, mean deviation and Standard Deviation. For example, if a country has very high income group people…
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Exercise : Solutions of Questions on Page Number : 71 Q1 :Which average would be suitable in the following cases? (i) Average size of readymade garments. (ii) Average intelligence of students in a class. (iii) Average production in a factory per shift. (iv) Average wage in an industrial concern. (v) When the sum of absolute deviations from average is least. (vi) When quantities of the variable are in ratios. (vii) In case of open-ended frequency distribution. Answer : (i) The demand for the average size of any readymade garment is the maximum. As, the modal value represents the value with…
Exercise : Solutions of Questions on Page Number : 56 Q1 :Bar diagram is a (i) one-dimensional diagram (ii) two-dimensional diagram (iii) diagram with no dimension (iv) none of the above Answer : Bar diagrams are One-dimensional diagrams. These are represented on a plane of two axis and depicts the relationship between the two variables (plotted on the either axis) in form of rectangular bars. Q2 :Data represented through a histogram can help in finding graphically the (i) mean (ii) mode (iii) median (iv) all the above Answer : Graphically mode can be determined by presenting the data in the…
Exercise : Solutions of Questions on Page Number : 38 Q1 : The class midpoint is equal to: (a) The average of the upper class limit and the lower class limit. (b) The product of upper class limit and the lower class limit. (c) The ratio of the upper class limit and the lower class limit. (d) None of the above. Answer : The option (a) is correct. The class midpoint is equal to the average of the upper class limit and the lower class limit. It is known by adding the values of upper and lower limits and dividing…
Exercise : Solutions of Questions on Page Number : 20 Q1 :Which of the following is the most important when you buy a new dress? Answer : Which of the following is the most important when you buy a new dress? a. Colour b. Brand c. Price d. Size Q2 :How often do you use computers? Answer : How often do you use computers? a. Less than 1 hour a day b. 1 to 3 hours a day c. 3 to 5 hours a day d. More than 5 hours Q3 :Which of the following newspaper/s do you read regularly?…
Below are the NCERT Solutions for Class 11 Economics Statistics for Economics Chapter 1 Introduction Exercise : Solutions of Questions on Page Number : 8 Q1 : Mark the following statements as true or false. (i) Statistics can only deal with quantitative data. (ii) Statistics solves economic problems. (iii) Statistics is of no use to Economics without data. Answer : (i) Statistics can only deal with quantitative data. False Statistics deals with both quantitative data as well as with qualitative data. Statistics not only reveals quantitative information but also reflects the qualitative aspect of data like better, worse off, highly…
Exercise : Solutions of Questions on Page Number : 195 NCERT Solutions for Class 11 Economics – Indian Economic Development – Chapter 10- Comparative Development Experiences of India and it Q1 :Why are regional and economic groupings formed? Answer : With the objective of understanding various means and strategies to strengthen the economies, different nations of the world are motivated to form regional and global economic groups like SAARC, European Union, ASEAN, etc. The formation of such regional and economic groups helps the member countries to know the development strategies and measures adopted by other member countries. This enables them…
Exercise : Solutions of Questions on Page Number : 176 NCERT Solutions for Class 11 Economics – Indian Economic Development – Chapter 9 – Environment and Sustainable Development Q1 :What is meant by environment? Answer : Environment refers to all the surroundings which have an impact on human lives. It is the sum total of the surroundings and resources that effect our existence and quality of life. It includes all the biotic and abiotic factors. Biotic factors include all the living creatures like plants, animals, forests, etc. while abiotic factors include all non-living things like air, water, land, etc. that…
Exercise : Solutions of Questions on Page Number : 159 NCERT Solutions for Class 11 Economics – Indian Economic Development – Chapter 8 – Infrastructure Q1 : Explain the term infrastructure. Answer : The term infrastructure refers to the underlying tangible and organisational structures that are essential for the smooth and prosperous functioning of an economy. In other words, infrastructure is regarded as a core support system that enables an economy to grow and develop. Generally, the term infrastructure means technical structure such as roads, transport, communication, bridges, dams, power, public institutions like schools, hospitals, etc. These structures not only…
Exercise : Solutions of Questions on Page Number : 134 NCERT Solutions for Class 11 Economics – Indian Economic Development – Chapter 7 – Employment: Growth,Informalisation and Other Issuses Q1 :Who is a worker? Answer : People work for earning their livelihood. A person who is involved in production activity contributing to the flow of goods and services in the economy is called a worker. In other words, a worker is regarded as an economic agent who contributes to the production of goods and services, thereby, to the GDP during a particular year. A worker renders services to others and…