Statistical Officer MCQs with answers for statistical officer jobs test preparation online.
Statistical Officer MCQs
Mean deviation is always ________?
A. Equal to S.D.
B. More than S.D.
C. Less than S.D.
D. Negative
The S.D. and variance are ____ of origine?
A. Multiplied
B. Variance
C. Change
D. Independent
The ________ in the distribution around which the observation to lie?
A. Mean
B. Dispersion
C. Manner
D. Central value
The value of interval x ± S include ______?
A. 49.45%
B. 95.45%
C. 68.27%
D. 99.73%
First moment about origin is always equal to ______?
A. A.M.
B. variance
C. Zero
D. None of these
The sum of powers of deviation from mean is zero is called ____?
A. Mean
B. Lack
C. Normal
D. Skewed
If Skewed distribution the three averages mean, median and mode are ___?
A. Identical
B. Different
C. Zero
D. None of these
The sum of the squares of deviations is the least when measured from ____?
A. A.M.
B. Median
C. Mode
D. G.M.
Mean deviation =______ S.D?
A. 2/3
B. 4/5
C. 5/6
D. 6/5
Standard deviation is always calculated from ____?
A. Mean
B. Median
C. Mode
D. G.M.
The range of partial correlation coefficient?
A. 0to1
B. -1to1
C. 0to-1
D. 0 to infinity
In regression the sign of (B’s) and (r)?
A. Same
B. Change
C. Differ
D. None of these
If (Bxy>1)then (Byx)?
A. Greater than 1
B. Less than 1
C. Remain same
D. No effect
Regression analysis is an _____?
Absolute measure
Relative measure
Both a and b
None of these
Correlation coefficient is ____?
A. Absolute measure
B. Relative measure
C. Both a and b
D. None of the above
When r is zero than both regression coefficients are ______?
A. 0
B. 1
C. 2
D. Infinity
The mode of the data 2,4,6,6,6,8 is _______?
A. 4
B. 6
C. 8
D. 30
We must arrange the data before calculating _______?
A. Mean
B. Median
C. Mode
D. G.M.
When in hypothesis testing (alpha) increases (1-beta)?
A. Decrease
B. Equal
C. Increases
D. None of these
random variable can assume values from ______ to n?
A. 6
B. 3
C. 2
D. 0
In the binomial experiment, the outcomes of each trial maybe classified into _____?
A. Success
B. Failure
C. Success or Failure
D. None of these
In binomial experiment, the successive trials are ____?
A. Dependent
B. independent
C. Related
D. constant
In binomial experiment successive trials are ______?
A. Dependent
B. Independent
C. May be inependent or dependent
D. None of these
When X denotes the number of success in binomial experiment, it is called ___?
A. Random variable
B. Binomial random variable
C. Continuous random variable
D. Both (b) and (c) but not (a)
In a binomial distribution the probability of ______ changes from trial to trial?
A. Failure
B. Experiment
C. Success
D. Out come
The hypergeometric probability distribution is used rather than the binomial or Poisson when the sampling is performed ?
A. With replacement
B. With out replacement
C. With out replacement from a finite population
D. With replacement
Binomial distribution is symmetrical when P= _______?
A. 1/q
B. 1
C. q
D. 2q
Binomial distribution is used when n is _______?
A. Large
B. Small
C. Zero
D. Normal
Binomial distribution is used when _____ is large?
A. nP
B. nq
C. p
D. n
If u = 5 and S.D. = 2.5 then Binomial distribution are ____?
A. Unequal
B. Wrong
C. Fair
D. None of these
In a binomial distribution mean and variance is __?
A. Variance > mean
B. Mean < variance
C. Variance ≠ mean
D. None of these
Which of the following is not a requirement for binomial distribution ?
A. Constant Probability of Success
B. Only two possible outcomes
C. A fixed number of trials
D. Equally likely outcomes
If ____ then the distribution is positively skewed?
A. p < q
B. q/p
C. p > q
D. p > 1/2
For a binomial distribution?
A. n must assume a number between 1 and 20 or 25
B. p must be a multiple of 10
C. There must be at least 3 possible outcomes
D. None of these
If a Binomial experiment is repeated ‘N’ times then binomial frequency distribution is _______?
A. N.{nx}px qn-x
B. N p q
C. N.{n/x}px qn-x
D. N.{n/x}p qn-x
If 5 dice are rolled 96 times then N. = ____?
A. 5
B. 96
C. 5/96
D. 96/5
The binomial distribution is positively skewed when _____?
A. p > q
B. p < q
C. p = q
D. both (a) and (b
If in binomial distribution p ≠ q, the distribution is ______?
A. Positively skewed
B. Negative skewed
C. May be positive skewed or negative skewed.
D. None of these
The sum of p and q is always _______?
A. 0
B. 2
C. 1
D. None of these
replacement a sampling unit can be selected ____?
A. Only Once
B. More than once
C. Less than once
D. None of these
The smallest individuals which constitute the entire population are called ______?
A. Sampling frame
B. Sampling units
C. Sample pop
D. Sample design
There are _____ probability sampling?
A. Four
B. Six
C. Three
D. Seven
In probability sampling each sampling unit has some _____?
A. Unknown
B. Large
C. Small
D. Know
Standard deviation of the sampling distribution of a statistics is called ____?
A. Serious error
B. Dispersion
C. Standard error
D. Difference
In w.o.r 2σx= _________?
A. 26/√n√N – n/N – 1
B. σ/√n√N – n/N – 1
C. 26/√n N – n/N – 1
D. 26/√n
The difference between statistics and parameter is called _____?
A. Bias
B. Standard
C. Sampling error
D. both (a) and (b)
A sample estimate is used to describe a characteristic of a _____?
A. Sample
B. Data
C. Population
D. None
The sampling error is the ______?
A. Same as the standard error of the mean
B. Difference between the value of the sample mean and the value of the population mean
C. Error caused by selecting a bad sample
D. Standard deviation multiplied by the sample size
Which of the following is impossible in sampling ?
A. Destructive tests
B. Heterogeneous data
C. To make voters lists
D. None of these
For making voters lists in Pakistan we need ______?
A. Simple random sampling
B. Systematic sampling
C. Quota sampling
D. Census
If in a sampling distribution of X the sample size is 25, what assumption must hold for the sampling distribution of X to be normal ?
A. Population distribution is normal
B. μ1 = μx
C. Population distribution is uniform
D. σx = σx /√n
Non-sample errors are reduced by ______?
A. Increasing the sample size
B. Reduced the amount of data
C. Decreasing the sample standard deviation
D. None of these
Sampling error can reduced by _____?
A. Non-random sampling
B. Increasing the population
C. Decreasing the sample size
D. Increasing the sample size
The process of selecting sample from the population is called ______?
A. Sampling process
B. Sampling unit
C. Sampling
D. Size
N – n/N -1 is called ______ population?
A. Group
B. Finite
C. Un-finite
D. Correction
Probability distribution of a statistics is called _________?
A. Sampling
B. Parameter
C. Data
D. Sampling distribution
Selection of s by the students to solve a paper is ______?
A. Random sampling
B. Non-random sampling
C. Prob.Sampling
D. Sampling with replacement
A sampling distribution is the probability distribution for which one of the following _____?
A. A sample
B. A sample statistic
C. A population
D. A population parameter
Non-random sampling is also called ______?
A. Biased sampling
B. Non-prob.sampling
C. Less than sampling
D. Representative sampling
Use of Statistics in planning is _____?
A. Useless
B. Various Methods
C. Unavoidable
D. Samples
Statistics tests the law of ______?
A. Other sciences
B. physics
C. Business
D. Literary subjects
In natural Sciences, statistics _______.
A. Has no role
B. Average
C. Plays an Important role
D. Study
In statistics, a sample means _____?
A. A portion of the sample
B. A portion of the population
C. All the items under investigation
D. None of the above
A numerical value calculated from sample is called ______?
A. Mathematics
B. Economics
C. Statistic
D. None of these
Census reports used as a source of data is _____?
A. Primary source
B. secondary source
C. Organized data
D. none
The data collected by NADRA to issue National Identity cards are ______?
A. Official data
B. un-official data
C. Primary data
D. Secondary data
Village Patwari collecting the data about cotton crops is the example of ____?
A. variable
B. Constant
C. Primary data
D. Secondary data
Statistics has handicap dealing with ___?
A. Constant
B. Variable
C. Quantitative data
D. Qualitative data
Major area of statistics today is concerned with drawing of conclusions from ____?
A. Samples
B. Primary
C. Two
D. Complete study
The Number of road accidents is the example of _____?
A. variable
B. Constant
C. Discrete variable
D. Continuous variable
In Statistics, a population consists of ________?
A. All People living in a country
B. All People living in the are under study
C. All subjects or objects whose characteristics are being studied
D. None of the above
The sum of squares of deviation is least if measure from _______?
A. Mean
B. Mode
C. Median
D. Variance
Variance is always calculated from ____?
A. Mean
B. Variance
C. Geometric Mean
D. Median
E. Mode
The sum of values divided by their number is called ____?
A. Median
B. Harmonic Mean
C. Mean
D. Mode
E. None of these
Arithmetic Mean is ______ affected by extreme values?
A. Not
B. Highly
C. Less
D. None of these
To find the average speed of a journey which is the appropriate measure of central tendency?
A. Mean
B. Geometric Mean
C. Harmonic Mean
D. Weighted Mean
E. Mode
If any of the value in data set is negative then it is impossible to compute _____?
A. Arithmetic Mean
B. Harmonic Mean
C. Geometric Mean
D. Mode
E. Median
The most repeated (popular) value in a data set is called ____?
A. Median
B. Mean
C. Mode
D. Geometric Mean
E. Harmonic Mean
Which of the measures given here are based on every item of the series (uses all observations)?
A: Range
B: Standard Deviation
C: Quartile Deviation
D: All of them
In a distribution of 10, 20, 30, 40, 50, the x is 30, the sum of deviations from x will be:________?
A: 60
B: 30
C: Zero
D: 15
Questionnaire survey method is used to collect ______?
A. Secondary data
B. Qualitative variable
C. Primary data
D. None of these
A parameter is a measure which is computed from ______?
A. Population data
B. Sample data
C. Test statistics
D. None of these
Primary data and _____ data are same?
A. Grouped
B. Secondary data
C. Ungrouped
D. None of these
The data which have already been collected by some one are called _____?
A. Raw data
B. Array data
C. Secondary data
D. Fictitious data
The number of accidents in a city during 2012 is _____?
A. Discrete variable
B. Continuous variable
C. Qualitative variable
D. Constant
The weights of students in a college/school is a _____?
A. Discrete Variable
B. Continuous Variable
C. Qualitative Variable
D. None of these
Which of the following divides a group of data into four subgroups?
A. Percentiles
B. Deciles
C. Median
D. Quartiles
E. Standard Deviation
The middle value of an ordered array of numbers is the _____?
A. Mode
B. Mean
C. Median
D. Mid Point
According to the empirical rule, approximately what percent of the data should lie within μ±σ?
A. 75%
B. 99.7%
C. 90%
D. 95%
Life of a T.V picture tube is a ________?
A. Discrete variable
B. Continuous variable
C. Qualitative variable
D. Constant
In descriptive statistics, we study:
A. The description of decision making process
B. The methods for organizing, displaying, and describing data
C. How to describe the probability distribution
D. None of the above
Which branch of statistics deals with the techniques that are used to organize, summarize, and present the data?
A. Advance Statistics
B. Descriptive Statistics
C. Inferential Statistics
D. Bayesian Statistics
Marital status of an individual is the example of _______?
A. Attribute
B. Discrete variable
C. Continuous variable
D. Constant
Proportion becomes percentage when multiplied by _____?
A. 1/10
B. 1/1000
C. 1/100
D. 100
Identify the attribute?
A. Blood group
B. Blood Pressure
C. Temperature of room
D. Religions of people of a country
Age of a shopkeeper is the example of ____?
A. Qualitative
B. Quantitative data
C. Variable data
D. Continuous data
____ data are collected for the first time.
A. Research
B. Statistical
C. Secondary
D. Primary
A Constant can assume ___ value?
A. One
B. Four
C. More than value
D. Resindent
Statistics Laws are true ___?
A. In each case
B. Average
C. Facts
D. Field
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