11. Complex sampling techniques are used, only in the presence of * (2 Points) All of the choices are correct. While making precise estimates about relatively small groups within large populations. O Large experimental data sets; When efficiency is required; and 12. What is the main difference of probabilistic and non-probabilistic sampling? * [ (2 Points) O Randomization Organization All of the choices are correct. Arrangement13. A measure of sampling variation can be obtained objectively from the sample itself. * (2 Points) 0 Cluster Sampling 0 Systematic Sampling 0 Probabilistic Sampling 0 Non~probabilistic Sampling 14. Situation: 10 students were selected from a class of 50 students to participate in a robotics competition in Singapore next year. Question: What type of sampling technique was used? * 0:),(2 Points) 0 Systematic sample 0 Simple random sample 0 All of the choices are possible. O Stratified sample 15. The following are types of non-probability sampling except: * (2 Points) Convenience Sampling O Purposive Sampling Quota Sampling Simple random sampling 16. Fairly easy to do and is widely used for its convenience and time efficiency. In many surveys, it is found to provide more precise estimates than simple random sampling. * (2 Points) Simple random sampling Cluster sampling Stratified sampling Systematic sampling17. Which of the following is the consideration of cluster sampling? * (2 Points) 0 Randomly sample clusters 0 Measure all units within sampled clusters 0 Divide population into clusters 0 All of the choices are correct. 18. Outcome of sampling might be biased and makes difcult for all the elements of population to be part of the sample equally. * (2 Points) 0 Nonprobabilistic sampling 0 Systematic sampling 0 Cluster sampling 0 Probabilistic sampling 19. Situation: An engineer attended a prototype presentation event wherein he aims to measure the accuracy of his prototype. Question: What is the most appropriate sampling to be used? * (2 Points) 0 Convenience sampling 0 Referral sampling O Simple random sampling 0 All of the choices. 20. Situation: A college student aims to gather responses from all engineering students the reason why they took engineering. The student wanted to filter responses from all BSEE students. Question: What is the most appropriate sampling to be used? * (2 Points) 0 Simple random sampling 0 All the choices are correct. 0 Purposive sampling 0 Convenience sampling