Question

sample response: mr. rodriguez made a reasonable inference. his sampling was random, nonbiased, and reasonably large compared to the school population. 12 is 20% of 60.
which did you include in your response? check all that apply.
□ the ratio in the sample is 12/60, or 0.2.
□ the sample was random.
□ the sample was chosen without bias.
□ the sample size was large enough.

Explanation:

Match each option to the content in the sample response:

1. The sample response states "12 is 20% of 60", which is equivalent to the ratio $\frac{12}{60}=0.2$.
2. The sample response explicitly says "His sampling was random".
3. "nonbiased" in the sample response means the sample was chosen without bias.
4. "reasonably large compared to the school population" means the sample size was large enough.

Answer:

• The ratio in the sample is 12/60, or 0.2.
• The sample was random.
• The sample was chosen without bias.
• The sample size was large enough.