From what I can see, there are different calculations for population and for sample. If you use the sample calculation, the answer is 1.7. This part isn't explained properly.

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From what I can see, there are different calculations for population and for sample. If you use the sample calculation, the answer is 1.7. This part isn't explained properly.

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Hi, I am confused by Questions 4 and 5.

How can the answer to Q5: '3 rows and 2 columns' be correct, and Q4: '2 rows and 2 columns' be incorrect?

Plus, you have words missing in your questions, which make it harder to understand what you're requesting.

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