Under what conditions is sampling bias likely to occur

Reference no: EM131321809

1. When and why would nonprobability sampling methods be used?

2. Under what conditions is sampling bias likely to occur, what are its effects on generalization, and how can it be avoided?

3. Indicate the similarities and differences among the mean, the median, and the mode.

4. What is the standard deviation, and what does it represent?

Reference no: EM131321809

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