Economics - Online Test
Q1. The number of protozoa seen under 5 separate microscope slides were 3,4,5,6 and 7. The sum of squared deviations of observations from their sample mean is:
Answer : Option C
Explaination / Solution:
sum of squared deviations of observations = ∑(xi-μ)2
μ= ∑Xi/N = (3+4+5+6+7)/5= 25/5= 5
(xi-μ)= -2, -1, 0, 1, 2
∑(xi-μ)2= 4+1+0+1+4= 10
Q2. What are the two categories into which infrastructure is divided
Answer : Option C
Explaination / Solution:
Infrastructure divide into two categories — economic and social.Both increasing the productivity of the factors of production and improving
the quality of life of its people.
Q3. In a centrally planned economy, the central problems are solved by
Answer : Option B
Explaination / Solution:
Method which can be employed to solve the central problems is the adoption of economic planning. In this method, the solution of the various basic problems is not achieved through the free working of demand for and supply of goods and factors. But to solve these problems, Government sets up a central planning authority which has been called by several names, such as planning commission, planning ministry or planning board.
Q4. Average Revenue(AR) is
Answer : Option D
Explaination / Solution:
No Explaination.
Q5. Rank Correlation was found by
Answer : Option B
Explaination / Solution:
In 1904, Charles Edward Spearman developed the formula to calculate coefficient of correlation of qualitative variables.
Q6. UWSP and USEP are the two components of which yojana
Answer : Option C
Explaination / Solution:
Swarna Jayanti Shahari Rozgar Yojana (SJSRY) in India is a Centrally Sponsored Scheme which came into effect on 1 December 1997. The scheme strives to provide gainful employment to the urban unemployed and underemployed poor, through encouraging the setting up of self-employment ventures by the urban and rural poor living below the poverty line.
Q7. The two ways of collecting information on the basis of questionnaire are _______.
Answer : Option A
Explaination / Solution:
A questionnair can be mailed or be filled by an enumerator considering the understanding level of the informant and accessibility.
Q8. The CPCB has identified ____ categories of industries which are significant polluters
Answer : Option D
Explaination / Solution:
No Explaination.
Q9. When a firm’s TR>TC, it can earn maximum profits
Answer : Option D
Explaination / Solution:
No Explaination.
Q10. Cash reserve ratio is a percentage of total deposits which the commercial bank keeps with the central bank by law.
Answer : Option B
Explaination / Solution:
No Explaination.
