Quantitative Techniques BA Hons Economics MCQs

Question. Standard deviation is the square root of the arithmetic average of the squares of the deviations measured from the_______
(a) Mean
(b) Mode
(c) Median
(d) All of the above

Question. Quartile deviation ignores ____ of the data
(a) 75%
(b) 60%
(c) 55%
(d) 50%

Question. Which one of the following is a positional average?
(a) Geometric mean
(b) Harmonic mean
(c) Median
(d) None of the above

Question. The suitable average for qualitative data is:
(a) Mean
(b) Median
(c) Mode
(d) Geometric mean

Question. Suitable average for averaging the shoe sizes for children is:
(a) Mean
(b) Mode
(c) Median
(d) Geometric mean

Question. Choose the correct answer
(a) HM≥GM≥AM
(b) HM≤GM≤AM
(c) GM>HM>AM
(d) None of the above

Question. Choose correct combination from Group A and B

(a) (1) and (i), (2) and (ii), (3) and (iii)
(b) (1) and (ii), (2) and (iii), (3) and (i)
(c) (1) and (i), (2) and (iii), (3) and (ii)
(d) None of the above

Question. Which of the following is not a pre-requisite for a good measure of central tendency?
(a) It should not be rigidly defined
(b) It should be based on all observations
(c) It should not be affected by fluctuation of sampling
(d) None of the above

Question. Which one of the following is a pre-requisite for a good measure of dispersion?
(a) It should be affected by fluctuation of sampling
(b) It should be easy to calculate
(c) It should not be based on all observations
(d) All of the above

Question. If Arithmetic mean = 20 and Median = 25. Then, the value of Mode is equal to__
(a) 22.5
(b) 20.5
(c) 30.0
(d) None of the above

Question. The averages are affected by change of:
(a) Origin
(b) Scale
(c) Both (a) and (b)
(d) None of the above

Question. In a given data the average which has the least value is
(a) Mean
(b) Median
(c) Harmonic mean
(d) Geometric mean

Question. The standard deviation of binomial distribution is express as
(a) npq
(b) √np
(c) √npq
(d) Pq

Question. Variance of binomial distribution is maximum when
(a) p < q
(b) p = q
(c) p > q
(d) none of the above

Question. Which of the following is a continuous distribution
(a) Poisson distribution
(b) Binomial distribution
(c) Normal distribution
(d) All of the above

Question. Normal distribution is also known as
(a) Bernoulli distribution
(b) Gaussian distribution
(c) Laplacian distribution
(d) Cauchy’s distribution

Question. The value of probability lies between
(a) 0 and ∞
(b) -1 and +1
(c) 0 and 1
(d) 1 and 100

Question. _________ is calculated on the basis of past experience and on experiment conducted.
(a) Classical probability
(b) Empirical probability
(c) Modern approach to probability
(d) None of the above

Question. Permutation refers to
(a) Arrangements
(b) Groups
(c) Outcomes
(d) Events

Question. The area under a standard normal curve is
(a) 0
(b) ∞
(c) 1
(d) Not defined

Question. The standard normal curve is symmetric about the value
(a) 0
(b) ∞
(c) 1
(d) 1.5

Question. If it is known that an event A has occurred, the probability of an event B given A is called
(a) Classical probability
(b) Statistical probability
(c) Posteriori probability
(d) Conditional probability

Question. The outcome of tossing a coin is a
(a) Simple event
(b) Mutually exclusive event
(c) Compound event
(d) Complementary event

Question. What is the probability of getting exactly one head in a single throw of two unbiased coins?
(a) 1/2
(a) 1/4
(b) 3/4
(c) 1

Question. In a discrete probability distribution, the random variables are
(a) Natural numbers
(b) Whole numbers
(c) Imaginary numbers
(d) Rational numbers

Question. The most commonly occurring value in a group of distribution is known as
(a) Median
(b) Mode
(c) Mean
(d) None of the above

Question. Which one of the following is not a mathematical average?
(a) Geometric mean
(b) Harmonic mean
(c) Arithmetic mean
(d) Median

Question. Which of the following is/are a mathematical averages?
(a) Geometric mean
(b) Harmonic mean
(c) Arithmetic mean
(d) All of the above

Question. Demerit of arithmetic mean is that
(a) It is not based on all observations
(b) It is not amendable to algebraic treatment
(c) It is not rigidly defined
(d) It is affected very much by extreme values

Question. Which of the following is not a measure of dispersion?
(a) Range
(b) Inter Quartile Range
(c) Mean Deviation
(d) None of the above

Question. 50% of the values in a distribution are
(a) Above the median value
(b) Below the mode value
(c) Above mean value
(d) Below mean value

Question. If any of the observations is zero, then the Geometric mean is equal to
(a) Mean
(b) Median
(c) Mode
(d) Zero

Question. Co-efficient of Range or Ratio of the range is_______ (where L and S stands for the largest and smallest observation respectively)
(a) (L-S)/(L+S)
(b) (L+S)/(L-S)
(c) (2L-S)/(2L+S)
(d) None of the above

Question. Choose correct combination from Group A and B

(a) (1) and (i), (2) and (ii), (3) and (iii)
(b) (1) and (ii), (2) and (iii), (3) and (i)
(c) (1) and (i), (2) and (iii), (3) and (ii)
(d) None of the above

Question. The graph of a cumulative frequency distribution is called
(a) Frequency polygon
(b) Histogram
(c) Cumulative frequency polygon
(d) Ogive

Question. In constructing a histogram, if the class interval size of one class is double than others, then the width of that bar should be?
(a) Doubled
(b) Half
(c) One
(d) Quarter

Question. Statistics branches include
(a) Applied statistics
(b) Mathematical statistics
(c) Industry statistics
(d) Both A & B

Question. When each member of a population has an equally likely chance of being selected
(a) Non-random sampling method
(b) Quota sample
(c) Snowball sample
(d) An equal probability selection method

Question. Cumulative Frequency is _____________frequency.
(a) Increasing
(b) Decreasing
(c) Fixed
(d) None of these

Question. Total angles in Pie Chart
(a) 360
(b) 90
(c) 180
(d) 45

Question. While constructing frequency distribution, the number of classes used depends upon
(a) Number of observation
(b) Size of class
(c) Range of data
(d) None of these

Question. Component bar charts are used when data is divided into
(a) Parts
(b) Groups
(c) Circles
(d) None of these

Question. The graph of the normal distribution depends on:
(a) Mean and standard deviation
(b) Harmonic and standard deviation
(c) Harmonic mean
(d) Standard deviation

Question. ____________use the division of a circle into different sectors.
(a) Conversion graphs
(b) Frequency polygon
(c) Sector graph
(d) Line graph

Question. In pie- chart, the arrangement of the angles of the different sectors is generally?
(a) Anti-clockwise
(b) Arrayed
(c) Clock-wise
(d) Alternative

Question. A graph consists of _______ lines.
(a) Parallel line
(b) Smooth curve
(c) Curve
(d) Straight

Question. The Normal distribution is ___________________?
(a) Platykurtic
(b) Mesoukurtic
(c) Leptokurtic
(d) None of these

Question. Class mark is the value which divides a class into______ equal parts?
(a) Four
(b) One
(c) Three
(d) Two

Question. A frequency touches the axis
(a) Yes
(b) No
(c) Sometimes
(d) None of these

Question. Dividing upper and lower limits of a particular class we get:
(a) Class interval
(b) Class frequency
(c) Class boundary
(d) Class mark

Question. Graph of time series is called
(a) Polygon
(b) Histogram
(c) Ogive
(d) Historigram

Question. The variables whose calculation is done according to the height, length, and weight are categorized as
(a) Discrete variables
(b) Flowchart variables
(c) Measuring variables
(d) Continuous variables

Question. Which of the following is not a form of non-random sampling?
(a) Snowball sampling
(b) Quota sampling
(c) Purposive sampling
(d) All of the above

Question. Which of the following will give a more accurate representation of the population from which a sample has been taken?
(a) A large sample based on the convenience sampling technique
(b) A small sample based on simple random sampling
(c) A small cluster sample
(d) A large sample based on simple random sampling

Question. The mean of a sample is
(a) Always equal to the mean of the population
(b) Always smaller than the mean of the population
(c) Computed by summing the data values and dividing the sum by (n-1)
(d) Computed by summing all the data values and dividing the sum by the number of items

Question. A Histogram is a set of adjacent
(a) Rectangles
(b) Triangles
(c) Squares
(d) Lines

Question. Which one of the following statement is/are true for the standard deviation?
1) It is independent on change of scale
2) It is independent on change of origin
3) It is the minimum root-mean-square deviation
(a) (1) only
(b) (1) and (2) only
(c) (2) and (3) only
(d) All of them

Question. The algebraic sum of the deviations of a set of values from their arithmetic mean is______
(a) Always one
(b) Always positive
(c) Always zero
(d) Always negative

Question. Choose correct combination from Group A and B

(a) (1) and (i), (2) and (ii), (3) and (iii)
(b) (1) and (ii), (2) and (i), (3) and (iii)
(c) (1) and (ii), (2) and (iii), (3) and (i)
(d) None of the above

Question. A measure of dispersion gives some idea about ______
(a) The size of average mean
(b) The size of the median
(c) The size of the modal class
(d) None of the above

FILL IN THE BLANKS

Question. If Mean = 147.2, Mode = 146.69 and standard deviation = 7.21 for a particular distribution. The Karl Pearsons’ coefficient of Skewness is equal to____

Question. In a moderately skewed distribution, Arithmetic mean = 24.6 and Mode = 26.1. Then, the value of median is equal to_____

Question. Median of the observations 82, 98, 73, 71, 43, 82 and 90 is equal to_______

Question. Variance of the values 15, 25, 5, 10 and 30 is equal to_______

Question. If Q₁= 2 and Q₃ = 6, the Co-efficient of Quartile Deviation is _______

Question. The standard deviation of the distribution

is equal to______

Question. Given the data

Then, the combined standard deviation is equal to___

Question. Addition theorem will be applicable only when the various events belong to the _____.

Question. A continuous variable can take any value within its _____

Question. The probability based on the concept of relative frequency is called _____ probability

Question. P (A U B) can be express by the ______ law of probability.

Question. If two events are independent, the probability that both will occur together is equal to the ____ of their individual probabilities.

Question. Normal distribution is a limiting case of Poisson distribution when its mean ‘m’ is ___

Question. Poisson distribution is applied in a situation where the probability of success is very small and that of failure is very ___ .

Question. Two events are mutually exclusive if P(AUB) = ____.

Question. If the mean marks of one class of 50 students is 30 and of another class of 100 students is 40. Then, mean of all the 150 students is equal to______

Question. The lower class boundary of 25 -35 will be______.

Question. Statistics laws are true for _______run.

Question. Total area under the normal curve is ____________.

Question. A time series is an arrangement of data according to __________.

Question. Any data collected by the investigator personally from the informants are called ______ data.

Question. _____is a presentation of information using lines on two or three axes such as x, y nd z.

Question. Proportion becomes percentage when multiplied by___________.

Question. A circle in which sectors represents various quantities is called ____________.

Question. _______is a form of diagrammatic presentation of data by joining mid-points of the tops of all rectangles in a histogram.

Question. ________ is a set of elements taken from a larger population according to certain rules.

Question. _______ is the difference between two class limit.

Question. Data which have not been arranged in systematic order is called _______data.

Question. ______ is defined as the ratio of the number of favorable cases to the total number of equally likely cases.

Question. A discrete variable can take a ___ number of values within its range.