Question

when is choosing a sample from a population least likely to be appropriate? select two options.
□ when the population is small
□ when the population is large
□ when the sample contains proportions of items/events/people that are different from those of the population
□ when the sample contains only items/events/people that reflect the population
□ when surveying the entire population is time consuming

Explanation:

1. When the population is small: Sampling is less appropriate here because with a small population, it's often feasible (and more accurate) to study the entire population rather than a sample.
2. When the sample contains proportions different from the population: A sample should be representative (reflect the population's proportions). If it doesn't, the sample is biased, so sampling is inappropriate as it won't give valid results about the population.

• For "when the population is large", sampling is usually appropriate to make study feasible.
• For "when the sample reflects the population", that's a good sample, so sampling is appropriate.
• For "when surveying the entire population is time - consuming", sampling is appropriate to save time.

Answer:

A. when the population is small
C. when the sample contains proportions of items/events/people that are different from those of the population