SMS 201 TMA ANSWERS 1-4


Q1 The scientific method for collecting, organizing, summarizing, presenting and analysing data is called
statistics
mathematics
analysis
numerical

Q2 The normal distribution curve is otherwise known as
leptokurtic
platykurtic
mesokurtic
normalkurtic

Q3 The degree of peakedness of a distribution is known as
moment
deviation
skewness
kurtosis

Q4 The standard deviation of the set of data 7,6,3,4,10 is
3.45
2.45
4.45
5.45

Q5 The mean deviation of the set of data 7,6,3,4,10 is
2
3
4
5


Q6 The mean deviation of the set of data 8,7,11,6,16,4,11
11
12
13
14

Q7 Find the mode of the data below 2,3,3,4,2,6,3,3,4,4,4
1.5
2.5
3.5
4.5
Q8 Which of the following gives the median of a grouped frequency distribution
Lm + (N/2 – CFm­1)Cm \r\nFm+1 Fm CFm­1
Lm + (N/2 – CFm­1)Cm
) Lm ­ (N/2 – Fm)Cm
(d) Lm + (N/2 – CFm­1)Cm

Q9 Find the median of the following data 8,3,5,2,6,7,3,9
5.5
5
4.5
4

Q10 Find the root mean square of the heights in ft of 5 students in a class – 3,2,4,6,7
4.775
2.775
3.775
4.7

Q11 Obtain the harmonic mean of the following data 3,2,6,4,
3.1
4.1
3.2
4.2

Q12 Obtain the geometric mean of the following data 3,2,6,4
3.46
3.56
2.46
4.46

Q13 24. The following are advantages of arithmetic mean except
it is easy to compute
it has determinate exact value
it can be distorted by extreme values in the distribution
it provides a good measure of comparison

Q14 1. The number of employees in commercial banks in Ibadan are given as 4368, 4387, 4331, 4383,
4356, 4369. Find the mean (a)
3370.14
45470
4370
4370.14

Q15 The heights in meters of 12 wallnut seeding, after twenty years growth are 4, 5, 6, 3, 7, 2, 8, 5, 3, 4.8,
4.5, 7.2, 5.2.
5
5.17
4
4.17

Q16 These are problems encountered in the construction of index numbers except
the choice of items
the choice of a base period unit
the choice of weights
the choice of considered

Q17 Forecast simply means statement (a) (b)©
that predicts future with the help of both past and present
that predicts past with the help of both past and future information
that calculating the trend estimate of the information
none of the above

Q18 It has been found that 2% of the tools produced by a certain machine are defective. What is the
probability that in a shipment of 400 such tools
0.006
­0.006
0.007
­0.007

Q19 One way in which a representative sample may be obtained from a population is by
simple random sampling
hard random sampling
random sample
sampling population

Q20 Sampling distribution is the ___________
Most fundamental of inductive statistics
most of inductive sample
inductive fundamental of population
statistical sampling population

Q21 The scientific method for collecting, organizing, summarizing, presenting and analysing data is called
statistic
mathematics
analysis
numerical

Q22 The two main types of statistics are
inductive and encryptive
inductive and descriptive
encryptive and descriptive
inductive and decriptive

Q23 The number of times that a variable occur is called
mode
median
mean
frequency

Q24 Frequency distribution involves
table showing values of variable(s) and rates of occurrence
classification of data in rows and columns
distribution of measures of variation
distribution of data by measures of location

Q25 The probability that an event will occur is
0 <P(E) <1
1 <P(E) <0
0 <P(E) <1
1 <P(E) <0

Q26 The probability of obtaining an even number in a single toss of a fair die is
½
¼

Q27 The mode of the set of data 1,2,3,3,2, 1 is
0
2
3
1

Q28 If a die is tossed once. What is the probability of obtaining even or prime number?
Q29 Find the mode of the data below 2,3,3,4,2,6,3,3,4,4,4
1.5
2.5
3.5
4.5
Q30 The range of the set of data 5,4,4,3,3,3,3 is
7
3
4
2

Q31 The probability of obtaining at least two heads in a toss of a fair die trice is
0
½
¼

Q32 The harmonic mean of 2,4,6 is
6
0.9167
0.3056
3.27
Q33 Obtain the geometric mean of the set of data 2,4,6
36
6
3.63
4

Q34 The sum of the absolute difference between consecutives set of data xj and mean x of the data divided
by the number of data is
range
mean deviation
error of deviation
standard deviation

Q35 Two events A and B are said to be _____, if they cannot occur together
independent event
non­mutually exclusive event
mutually exclusive event
mutually inclusive event
Q36 The degree of asymmetry, or departure from symmetry of a distribution is known as
deviation
kurtosis
skewness
mean

Q37 The third moment about the mean of the data 2,3,4,5,6 is
4.4
44
88
440

Q38 The range of the set of data 20,21,23,25,28,30,35,37,38,40 is
29.7
29
20
3
Q39 The arithmetic mean of 5,5,5,5,7,7,7,8,8,8,8,8,6,6,4,4 is
6.31
8
7
63.1

Q40 Sampling distribution is the ___________
Most fundamental of inductive statistics
most of inductive sample
inductive fundamental of population
statistical sampling population

Q41 A particular value of the population, such as the mean income or the level of formal education, is
called
parameter
population
sample
variable

Q42 _________ combine the features of cross­sectional and time­series data.
secondary data
panel data
census
cross sectional data

Q43 The two sources of data are _______ and _________
publication and paper
article and write­up
primary and secondary
National news paper and census

Q44 Data collected for cross­section of subjects (population under study) at a time is called _______
primary data
secondary data
time series data
cross sectional data

Q45 Data collected on a particular variable or set of variables over time is know as _______
primary data
secondary data
population data
time series data

Q46 _____ advocate that the current year quantities are taken as weights
Dorbish­ Bowley
Irving Fisher
Paasche's price
Edward

Q47 _______ advocated the geometric cross of Laspeyre’s and Paasche’s Price index numbers
Dorbish­ Bowley
Irving Fisher
Kennesian
Adam Smith

Q48 Aggregate of prices (of all the selected commodities) in the current year as a percentage of the
aggregate of prices in the base year know as _____
unweighed method
weighted method
macro economics
sample method

Q49 reflect changes in the retail prices of different commodities. The are normally constructed for
different classes of consumers know as _____
index
price index number
value index number
retail price index number

Q50 reflect changes in the volume of goods produced or consumed know as ___
index
price index number
value
quantity index number

Q51 most common index numbers are the price index numbers which study changes in price level of
commodities over a period of time is know as ________
card number
Index numbers
pvc number
price index number

Q52 _________ are indicators which reflect the relative changes in the level of certain phenomenon in any
given period
arithemmetic number
Index numbers
year number
pvc number

Q53 Under certainty, the decision maker simply ______ the outcome of each alternative and selects the
one that best meets his/her objective
select
appraises
happy
ignor

Q54 _______ looks for the attributes or qualities of the product .i.e. comparison of the best one
critical examinations
attribute listening
thinking
alternative chioce

Q55 ________ is the comparison of one thing with another that has similar features
analogies
random
sample
selection

Q56 ________is a method base on two head is better than one.
brai storming
management meeting
conference
broad meeting

Q57 _______ Is the logical approach, it answers questions like What, Who, Where, How, When and Why
critical examinations
brain storming
conference
broad meeting

Q58 ______ defined as the logical and quantitative analysis of all the factors influencing a decision
Choice
Economic defination
Decision analysis
Demand and Supply

Q59 ________ thinking considers end rather than means
leaders
group
creative
analytical

Q60 The art of problem solving and decision making is base on _________
leader and position
authority
common sense
power

Q61 analysis is the modern approach to decision making both in economics and in business
Demand and Supply
Trend line
Regression
Decision

Q62 Pearson’s No. 2 coefficient of skewness uses the difference between the ____
skewness of the distribution
Variance and mean of the distribution
mean and the mode
mean and the median of the distribution

Q63 A complete absence of skewness would have a coefficient of skewness equal to ________
alfa level
half
one
zero

Q64 leptokurtic, platykurtic and mesokurtic is otherwise known as __________distribution curve
ordinary
normal
frequency
arithemetic

Q65 _________ measures the degree of peakedness of a distribution. It is usually taken relative to a
normal distribution
skewness
Kurtosis
mesokuit
platkurtic

Q66 The moment coefficient of kurlosis is used to calculate the _____ of a distribution
peakedness
mesokurtic
skewness
platkurtic
Q67 Pearson’s first coefficient of skewness and Pearson’s second coefficient of skewness is called
_____________
measures of variation
measures of variance
measures of skewness
measures of regression analysis

Q68 ___________ is useful in the comparison of two or more sets of data which are measured in the same
units but differ to such an extent that a direct comparison of the respective standard deviations is not very
helpful
coefficient
variation
coefficient of variation
regression analysis

Q69 Consider the arrayed data, X = 2,5,8,9,12,13,18. Find mean deviation
52.19
9.57
3.796
641.29

Q70 _________ can be said to measure the degree of uniformity of observations in a given set of data
variance
standard deviation
range
variation

Q71 __________ can be an unsatisfactory measure of dispersion because it is affected by extreme values
or items which renders it unrepresentative of majority of the set of data
mean deviation
variance
mean
range

Q72 variables include sex, in religious or party affIliation, genotype, blood group, place of residence know
as _____
ratio scale
nominal scale
ordinal scale
interval scale

Q73 scale has all the properties of the nominal, ordinal and interval scales including the additional
property of having an absolute zero point know as _________
ratio scale
nominal scale
ordinal scale
interval scale

Q74 _________ can be defined as a management tool for making decision. It is also a scientific approach
to presentation of numerical information in such a way that one will have a maximum understanding of
the reality represented by such information.
Quantitative Variable
Statistics
Mathematics
Business

Q75 Government uses _________ as a tool for collecting data on economic aggregates such as national
income, savings, consumption and gross national product
Sample
Population
statistics
agent

Q76 ______________ is a variable whose values are given as numerical quantities
Quantitative Variable
Qualitative Variable
Random Variable
Continuous Variable

Q77 In studying the nutritional well being of pupils in a primary school, the _______ is a pupil in the
school.
entity
Population
sample
variable

Q78 _____________ is a characteristic that assumes different values for different entities
Variable
Population
Random Variable
Sample Variable

Q79 ____________ is the part of the population that is selected for a study
Sample
Continuous
Random
Qualitative

Q80 __________variable that can assume both decimal and non decimal values
Continuous
Population
Random
Discrete

1 comment:

  1. These ans doesn't correspond with any of the TMAs. Please check and assist us. Thanks.

    ReplyDelete