What is the difference between simple random sampling and stratified sampling?
a. Stratified sampling combines random selection with predetermined weighting of a population's demographic characteristics, whereas random sampling does not.
b. Stratified sampling excludes the element of randomness from the polling process, whereas random simplified sampling does not.
c. Random simplified sampling incorporates random selection into the polling procedure, where as stratified sampling does not.
d. Stratified sampling gives each member of a targeted population the same probability of being polled, whereas simple random sampling does not.
e. Stratified sampling relies on techniques to eliminate bias, whereas simple random sampling does not.
Answer: A
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