Multiple choice questions and answers (MCQs) on “Statistics” focus on all areas of Statistics covering various topics. These topics are chosen from a collection of the most authoritative and best reference books on Probability and Statistics. Answers are given below
MCQs on Statistics
Question 1: The mean of a distribution is 14 and the standard deviation is 5. What is the value of the coefficient of variation?
A) 60.4%
B) 48.3%
C) 35.7%
D) 27.8%
1) C
Question 2: The mean of a distribution is 23, the median is 24, and the mode is 25.5. It is most likely that this distribution is:
A) Positively Skewed
B) Symmetrical
C) Asymptotic
D) Negatively Skewed
2) D
Question 3: Which of the following describe the middle part of a group of numbers?
A) Measure of Variability
B) Measure of Central Tendency
C) Measure of Association
D) Measure of Shape
3) B
Question 4: According to the empirical rule, approximately what percent of the data should lie within μ±σμ±σ?
A) 75%
B) 68%
C) 99.7%
D) 90%
E) 95%
4) E
Question 5: The sum of the deviations about the mean is always:
A) Range
B) Zero
C) Total Standard Deviation
D) Positive
E) Negative
5) B
Question 6: The middle value of an ordered array of numbers is the
A) Mode
B) Mean
C) Median
D) Mid Point
6) C
Question 7: Which of the following is not a measure of central tendency?
A) Percentile
B) Quartile
C) Standard deviation
D) Mode
7) C
Question 8: Which of the following divides a group of data into four subgroups?
A) Percentiles
B) Deciles
C) Median
D) Quartiles
E) Standard Deviation
8) D
Question 9: If the standard deviation of a population is 9, the population variance is:
A) 9
B) 3
C) 21
D) 81
9) D
Question 10: If a distribution is abnormally tall and peaked, then is can be said that the distribution is:
A) Leptokurtic
B) Pyrokurtic
C) Platykurtic
D) Mesokurtic
10) A
Question 11: Sum of dots when two dice are rolled is
A) a discrete variable
B) a continuous variable
C) a constant
D) a qualitative variable
11) A
Question 12: The weights of students in a college/school is a
A) Discrete Variable
B) Continuous Variable
C) Qualitative Variable
D) None of these
12) B
Question 13: The number of accidents in a city during 2010 is
A) Discrete variable
B) Continuous variable
C) Qualitative variable
D) Constant
13) A
Question 14: Which of these represent qualitative data
A) Height of a student
B) Liking or disliking of (500) persons of a product
C) Income of a government servant in a city
D) Yield from a wheat plot
14) B
Question 15: Life of a T.V picture tube is a
A) Discrete variable
B) Continuous variable
C) Qualitative variable
D) Constant
15) B
Question 16: The first hand and unorganized form of data is called
A) Secondary data
B) Organized data
C) Primary data
D) None of these
16) C
Question 17: The data which have already been collected by some one are called
A) Raw data
B) Array data
C) Secondary data
D) Fictitious data
17) C
Question 18: Census reports used as a source of data is
A) Primary source
B) secondary source
C) Organized data
D) none
18) B
Question 19: The grouped data is also called
A) Raw data
B) Primary data
C) Secondary data
D) Qualitative data
19) C
Question 20: Primary data and _____________ data are same
A) Grouped
B) Secondary data
C) Ungrouped
D) None of these
20) C
Question 21: Questionnaire survey method is used to collect
A) Secondary data
B) Qualitative variable
C) Primary data
D) None of these
21) C
Question 22: Data collected by NADRA to issue computerized identity cards (CICs) are
A) Unofficial data
B) Qualitative data
C) Secondary data
D) Primary data
E) None of these
22) D
Question 23: Population census is conducted through
A) Sample survey
B) Accounting
C) Investigation
D) Complete enumeration
23) D
Question 24: A parameter is a measure which is computed from
A) Population data
B) Sample data
C) Test statistics
D) None of these
24) A
Question 25: Given X1=12,X2=19,X3=10,X4=7X1=12,X2=19,X3=10,X4=7, then ∑X4i=1∑Xi=14 equals?
A) 36
B) 48
C) 41
D) 29
E) None of these
25) B
Question 26: A chance variation in an observational process is
A) Dispersion/ Variability
B) Measurement error
C) Random error
D) Instrument error
26) C
Question 27: A constant variable can take values
A) Zero
B) Fixed
C) Not fixed
D) Nothing
27) B