Certificate in Business Data Analytics (CBDA) — Question 25

A government agency is conducting a study on the performance of 12th grade students in mathematics across the country. In particular, they want to understand if there is a relationship between intelligence and scores, as well as the difference in performance between various locations.
Which combination of inferential statistics procedures should be used?

Answer options

• A. Frequency distribution, time-series
• B. Range, standard deviation
• C. Correlation co-efficient, analysis of variance
• D. Mean, median

Correct answer: C

Explanation

The combination of Correlation co-efficient and analysis of variance is suitable because it allows the agency to assess the relationship between intelligence and scores (correlation) and to compare performance differences across locations (ANOVA). The other options either focus on descriptive statistics or are not appropriate for analyzing relationships and differences in this context.