Online MCQ Assignment Answer

QN1: a sequence of interrelated decisions made either simultaneously or over several time periods called dynamic decisions.

a. dynamic decisions
b. static decisions
c. Both
d. None

Answer

Answer: a. dynamic decisions

QN2: Stocking of an item for sale in a certain trade fair, illustrates a

a. Static decision
b. Where uncertainly exists
c. Nature is opponent.
d. All of above

Answer

Answer: a. Static decision

QN3: Quantitative analysis is also called

a. Operations research
b. Management science
c. Quantitative techniques
d. All the above

Answer

Answer: d. All the above

QN4: Quantitative research provides the fundamental connection between

a. empirical observation and mathematical expression
b. empirical observation and qualitative expression
c. empirical observation and social expression
d. empirical observation and all expression

Answer

Answer: a. empirical observation and mathematical expression

QN5: Most of the business decisions can be made on the basic of

a. Rule of thumb
b. Commonsense
c. Snap judgment.
d. Quantitative Techniques

Answer

Answer: d. Quantitative Techniques

QN6: Statistics is a branch of

a. applied physics
b. applied mathematics
c. applied commerce
d. Dramatics

Answer

Answer: b. applied mathematics

QN7: The mean of 7, 12, 24, 20, 19 is

a. 14
b. 16
c. 15.4
d. 16.4

Answer

Answer: d. 16.4

QN8: ∑ (X/c) =

a. ∑ ( X)/n c
b. ∑ ( X)/∑ c
c. ∑ ( X)/c
d. X/c.

Answer

Answer: c. ∑ ( X)/c

QN9: Midterm exam scores for a small advanced neuroanatomy class are provided below. Scores represent percent of items marked correct on the exam.

87,99,75,87,94,75,35,88,87,93
The mode of the distribution
a. 75
b. 87
c. 88
d. 94

Answer

Answer: b. 87

QN10: Which measure of Central tendency is most efficient

a. Mean
b. Median
c. Mode
d. All are equal

Answer

Answer: a. Mean

QN11: Mean Deviation can be calculated from

a. Mean
b. Median
c. Mode.
d. All the three

Answer

Answer: d. All the three

QN12: Qualitative data are

a. Non-numeric
b. Numeric
c. Can be both
d. None

Answer

Answer: a. Non-numeric

QN13: The numeric data that have a finite number of possible values is called

a. Continuous data
b. Discrete data
c. Datum
d. None

Answer

Answer: b. Discrete data

QN14: The Coefficient of Variance is expressed as

Answer

Answer: a

QN15: Which one is unaffected by extreme scores

a. Mean
b. Median
c. Mode
d. Range

Answer

Answer: c. Mode

QN16: A storeowner kept a tally of the sizes of suits purchased in her store. Which measure of central tendency should the storeowner use to describe the average suit sold?

a. Mean
b. Median
c. Mode
d. None

Answer

Answer: a. Mean

QN17: The correlation coefficient, r = -1, implies

a. Perfect negative
b. Perfect positive
c. No correlation
d. Limited correlation

Answer

Answer: a. Perfect negative

QN18: If two variables changes in the opposite direction and in the same proportion, the correlation between the two is

a. Perfect positive
b. Limited positive
c. Limited Negative
d. Perfect negative

Answer

Answer: d. Perfect negative

QN19: The value of ‘r’ gives the magnitude of correlation and its sign denotes its

a. Value
b. Direction
c. Both
d. None

Answer

Answer: b. Direction

QN20: By the Rank method the value of R is -0.73 it suggests a

a. fairly strong negative relationship
b. fairly strong positive relationship
c. Perfect negative
d. Perfect positive

Answer

Answer: a. fairly strong negative relationship

QN21: The range of the correlation coefficient is?

a. -1 to 0.
b. 0 to 1.
c. -1 to 1.
d. None of the above.

Answer

Answer: c. -1 to 1.

QN22: When looking at a sequence of monthly postal revenue data, we note that the revenue is consistently highest in December. The high December revenue is an illustration of:

a. trend
b. seasonal variation
c. irregular fluctuations
d. a cycle

Answer

Answer: b. seasonal variation

QN23: Which of the following is NOT an assumption of the Binomial distribution?

a. All trials must be identical.
b. All trials must be independent.
c. Each trial must be classified as a success or a failure.
d. The probability of success is equal to .5 in all trials.

Answer

Answer: d. The probability of success is equal to .5 in all trials.

QN24: In Regression Analysis the independent variable is also known as

a. Regressed variable
b. Regressor variable
c. Random variable
d. All of the above

Answer

Answer: b. Regressor variable

QN25: Given that we have collected pairs of observations on two variables X and Y , we would consider fitting a straight line with X as an explanatory variable if:

a. the change in Y is an additive constant.
b. the change in Y is a constant for each unit change in X
c. the change in Y is a fixed percent of Y
d. the change in Y is exponential

Answer

Answer: b. the change in Y is a constant for each unit change in X

QN26: In Regression Analysis, a single regression line is obtained in case if

a. r= +1
b. r= -1
c. r= +1
d. r= 0

Answer

Answer: d. r= 0

QN27: The regression Analysis Studies

a. one-way causal effect
b. two-way causal effect
c. interdependence of the variables
d. dependence of the variables

Answer

Answer: c. interdependence of the variables

QN28: Correlation Coefficient is the —between the regression coefficients

a. arithmetic mean
b. geometric mean
c. harmonic mean
d. median

Answer

Answer: b. geometric mean

QN29: Gradual shifting of a time series over a long period of time is called

a. periodicity
b. cycle.
c. regression.
d. trend.

Answer

Answer: a. periodicity

QN30: The trend component is easy to identify by using

a. moving averages
b. exponential smoothing
c. regression analysis
d. the Delphi approach

Answer

Answer: c. regression analysis

QN31: Seasonal components

a. cannot be predicted.
b. are regular repeated patterns.
c. are long runs of observations above or below the trend line.
d. reflect a shift in the series over time.

Answer

Answer: b. are regular repeated patterns.

QN32: What probability is shown on the Venn diagram by the shaded region below t probability is shown on the Venn diagram below

a. p(A)
b. p(B)
c. p(A and B)
d. p(not B)

Answer

Answer: d. p(not B)

QN33: At Sanjay Middle School, 3 out of 5 students make honor roll. What is the probability that a student does not make honor roll?

a. 65%
b. 40%
c. 60%
d. None of the above

Answer

Answer: b. 40%

QN34: In a class of 30 students, there are 17 girls and 13 boys. Five are A students, and three of these students are girls. If a student is chosen at random, what is the probability of choosing a girl or an A student?

a. 19/30
b. 11/50
c. 12/30
d. 15/40

Answer

Answer: a. 19/30

QN35: In a shipment of 100 televisions, 6 are defective. If a person buys two televisions from that shipment, what is the probability that both are defective?

a. 3/100
b. 1/330
c. 9/2500
d. 6/100

Answer

Answer: b. 1/330

QN36: Find the correlation coefficient r(X, Y) between X and Y,when

Cov(X,Y) = -2.45, Var (X) = 8.25 and Var (Y) = 21.49
a. 0.18
b. -0.18
c. 0.36
d. – 0.36

Answer

Answer: b. -0.18

QN37: A coin is tossed 5 times. What is the probability of getting atleast 3 heads?

a. 1/2
b. 1/3
c. 1/4
d. 1/5

Answer

Answer: a. 1/2

QN38: Normal Distribution is symmetrical about its

a. Harmonic mean
b. Mean
c. Range
d. Standard deviation

Answer

Answer: b. Mean

QN39: In Normal Distribution 95% of the observations fall within 2 standard deviations of the mean, that is, between

a. μ- σ and μ +σ
b. μ- 2σ and μ +2σ
c. μ- 3σ and μ +3σ
d. Not defined

Answer

Answer: b. μ- 2σ and μ +2σ

QN40: Condition for the Applicability of Binomial Distribution:

a. There should be a finite number of trials.
b. The trials do not depend on each other.
c. Each trial should have only two possible outcomes, either a success or a failure.
d. All of the above

Answer

Answer: d. All of the above