Class XI
Economics : Statistics
Chapter – 3
Census and Sample Methods
of
Collection of Data
Assignment
Total Marks = 30
Marks 1x3
Q.1. Reliability of sampling
data depends on :
a)
size of sample
b)
method of sampling
c)
training of enumerators
d)
all of these
Q.2. Under random sampling,
each item of the universe has --------------------- chances of being selected.
a)
equal
b)
unequal
c)
zero
d)
none of these
Q.3. If the investigator wants
to select a sample on the basis of diverse characteristics of the population,
which method should he use?
a)
Convenience sampling method
b)
Quota sampling method
c)
Stratified sampling method
d)
Both (b) and (c)
Marks 3x1
Q.4. What is meant by universe
or population?
Marks 4x6
Q.5. Differentiate between
census method and sample method of collection of data. Which one is better in
your opinion? Explain.
Q.6. Define random sampling.
How is it different from haphazard sampling?
Q.7. What are the main methods
of sampling? Write the features, merits and demerits of Purposive sampling and
Stratified sampling with example.
Q.8. What are the methods for
random sampling? Explain each giving examples.
Q.9. The reliability of
sampling data depends upon which factors?
Q.10. Differentiate between
sampling and non-sampling errors.
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