Statistics

Sampling Techniques
Simple random sampling and systematic sampling are:
probability sampling
non probability sampling
quota sampling
time sampling
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Statistical Inference
If the population has two parameters, to find moment estimates we have to Calculate:
First two sample raw moment
First sample raw moment.
Both A and B
None of these
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Measures of Dispersion
In quality control of manufactured items, the most common measure of dispersion is:
Range
Average deviation
Standard deviation
Quartile deviation
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Sampling Techniques
In systematic sampling first element is selected randomly:
True
False
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Measures of Dispersion
The measure of dispersion which is expressed in terms of the units of the observations I called________Absolute measure
Variance
Relative measure
None of the above
All of the Above
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Measures of Central Tendency
The sum of squared deviation is least from:
Median
Mean
Mode
Standard Deviation
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Measures of Central Tendency
Which of the following Measure of averages is affected by extreme (very small or very large) values in thedata set?
Geometric Mean
Median
Arithmetic Mean
Harmonic Mean
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Measures of Central Tendency
If any of the value in the data set is zero then it is not possible (i.e. impossible) to compute:
Mode
Median
Mean
Harmonic Mean
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Introduction to Statistics
Data collected by NADRA to issue computerized identity cards (CICs) are:
Unofficial data
Qualitative data
Secondary data
Primary data
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Statistical Inference
If X follows normal distribution ( ) then Var ( ) =
n /(n+1)2
/(n+1)2
Both A and B
Sufficient
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