Question

Which of the following is an example of random sampling?
a) Selection of the students on the basis of the preference of investigator himself
b) Selection of the students on the basis of lottery system
c) Selection of the students on the basis of grouping and then random selection from the
group
d) All of the above​

Answer 1

Answer:

d) All of the above

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Answer 2

Answer:

a) Selection of the students on the basis of the preference of investigator him self

c) Selection of the students on the basis of grouping and then random selection from the group

Explanation:

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