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Questions and Answers
What is the primary focus of statistics?
What is the primary focus of statistics?
- Creating mathematical models for all phenomena
- Describing and summarizing data (correct)
- Proving cause-and-effect relationships
- Predicting future events with certainty
Which measure of central tendency is most influenced by extreme values?
Which measure of central tendency is most influenced by extreme values?
- Mode
- Median
- Mean (correct)
- Standard deviation
What is the purpose of a confidence interval in statistics?
What is the purpose of a confidence interval in statistics?
- To ensure that the sample is perfectly representative of the population
- To provide an exact value for a population parameter
- To eliminate the possibility of sampling error
- To estimate the range within which a population parameter lies (correct)
