Explain the difference between a simple random sample and a systematic sample. (Select all that apply.)
(1).In a systematic sample, every sample of size n has an equal chance of being included.
(2).In a systematic sample, random samples from each strata are included.
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(3).In a simple random sample, the only samples possible are those including every kth item from the random starting position.
(4).In a simple random sample, random samples from each strata are included.
(5).In a systematic sample, the only samples possible are those including every kth item from the random starting position.
(6).In a systematic sample, the clusters to be included are selected at random and then all members of each selected cluster are included.
(7).In a simple random sample, the clusters to be included are selected at random and then all members of each selected cluster are included.
(8).In a simple random sample, every sample of size n has an equal chance of being included.

Answer (5) and (8)