Mathematical methods for economics - class-XI
mathematical methods for economics
Questions
_________ is the largest number which when divides $100$ and $83$ leaves a remainder of $4$ and $3$ in each case.
- $14$
- $12$
- $16$
- $20$
$Qd = f (Px)$ is __________________.
- demand function
- supply function
- price function
- cost function
Which ratio explains that how much portion of earning is distributed in the form of dividend?
- Equity-Debt Ratio
- Pay-out Ratio
- Earning Yield Ratio
- Dividend-Debt Ratio
Matrix is a singular while matrices is a plural form.
- True
- False
Mathematical Economics is the integration of _________________.
- Graphs and Economics
- Mathematics and Economics
- Economics and Equations
- Economics and Statistics
While evaluating CA CPT papers an examiner has escaped the marks of one of the student while calculating the result summary of his class. However he knew that the average marks of the class was $72%$ and the marks of the remaining students were $56, 85, 78, 70, 75, 48, 65, 85$ and $75$. The marks of the student were __________.
- $83$
- $82$
- $79$
- $81$
What is the class mark of the class interval $(50-60)$?
- $50$
- $55$
- $60$
- $62.5$
A statement of relationship between two quantities is called a/an ____________.
- formula
- relationship
- equation
- sum
Find the value of K if $\sqrt{9^4}X\sqrt{3^5}=3k$.
- $2/13$
- $13/2$
- $1/13$
- $4/5$
From the following details calculate Fisher Ideal index
- 88
- 90
- 92
- 93
Find the co-efficient of mean deviation from Median from the following data.Median deviation =4.2,Median =21
- 0.3
- 0.20
- 0.25
- 0.22
If x(x-2) = 5 then (x - 5/x) is =
- -1
- 0
- 1
- 2
$Log4^{64}$is equal to
- 2
- 3
- 4
- 5
Rank of 4th deciles is equal to __________
- (n+1)/10
- 4(n+1)/10
- n/10
- (n+1)/4
If $3X^2+6X+3=0,$ then the roots of the equations are
- $(3,3)$
- $(-1,1)$
- $(2,4)$
- $(4,1)$
How many percentiles are there in a distribution
- 99
- 10
- 100
- 101
Under Free Trade regime there is ____________.
- increase in domestic prices
- fall in economic welfare
- equalization of factor prices
- loss of domestic industries
The age of son and father is in the ratio of 3:7, if the age of the father is 42, the age of the son will be___
- 21 years
- 24 years
- 18 years
- 20 years
If Median is 11, Mean is 10, what is Mode
- 13
- 12
- 11
- 10
The number of ways the letter SCHOLAR can be arranged so that LR never come together are .
- 5,040
- 3,600
- 4,404
- 3,910
The median value for the series $3,5,5,2,6,2,9,5,8,6$ is
- 5.5
- 5
- 6.1
- 6.2
If the regression coefficient of $x$ on $y$ is $0.64$ and that of $y$ on $x$ is $1$. Find the value of correlation coefficient between $x$ and $y$.
- -0.5
- 0.57
- 0.8
- none
A speaks truth 6 out of 10 and B speaks truth 8 out of 10 times. What is the probability of both telling lie
- .44
- .55
- .48
- .08
A has three children in his family, the probability of all the children being a girl child is _____
- $\dfrac{1}{2}$
- $\dfrac{1}{3}$
- $\dfrac{1}{8}$
- $\dfrac{3}{8}$