Data Mining class:
True or False:
1. Correlations are distorted if the data is standardized.
2. Linear Regression cannot be applied on every dataset, it is prudent to apply linear regression if the correlation is greater than 0.5 or less than -0.5.
3. Discretized values in a decision tree may be combined into a single branch if order is not preserved.
4. Higher level aggregations may have more variations than lower level aggregations.
5. Jaccard coefficient ignores 00 combinations since it is meant to eliminate skewness when 00 combinations are common and irrelevant.
