English and Logical Reasoning Prep Guide
- Exam
- English and Logical Reasoning Prep Guide
- Subject
- Logical Reasoning
- Chapter
- Arithmetic Reasoning
English and Logical Reasoning Prep Guide · Logical Reasoning · Arithmetic Reasoning
Estimates based on cluster samples are usually more reliable:
Estimates based on cluster samples are usually more reliable:
Options
- APer unit time
- BPer unit \cos t
- CPer unit area
- DNone of these
Correct answer
B. Per unit \cos t
Step-by-step solution
We use cluster sampling in market research. When we cannot get the proper information about the whole population, so we take a cluster for information, and it is very economical and practical.