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      • Avatar of MikeLittle says

        @mursaleen25, It’s not always. If you have only 50 customers and you invoice them all once per month, you’re only going to be looking at the same 5 customer accounts in your sample. That’s hardly random. The only thing truly random about systematic sampling is the random start point – ie the first item selected from the population

  1. Avatar of eloacca says

    question 1 page 7 is not very clear to me tho.i need more examples to be able to distinguish between primary and secondary data.every other topic was well understood thank you

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