100% Free GMAT-Data-Insights Practice Exam Questions (2026)

When analyzing a scatter plot of advertising spend vs. revenue in a GMAT data interpretation question, what does a correlation coefficient of -0.1 indicate? (difficulty: medium)

In decision tree analysis, which of the following metrics is most appropriate for evaluating the quality of a split when dealing with continuous target variables? (difficulty: medium)

In forecasting historical data, what does an autocorrelation coefficient of 0.85 at lag 12 typically indicate in monthly business data? (difficulty: medium)

In forecasting historical data, what does an autocorrelation coefficient of 0.85 at lag 12 typically indicate in monthly business data? (difficulty: medium)

When analyzing a database containing multi-valued attributes in customer contact information, which normalization form specifically addresses this issue? (difficulty: medium)