According to best practices, when should you fit encoders?

For highly skewed numeric data with missing values, which imputation method is recommended?

What should you do with categorical variables that have inconsistent formats (like “Technology”, “Tech”, “IT”)?

What happens if you encounter new categories in the test set that weren’t in the training set?

What does MCAR stand for in the context of missing data?

What is the IQR method used for?

Which encoding method should be used for categories with natural order (like Small, Medium, Large)?

A haplotype block:

ESSAY 2- ATTACH FULL ESSAY/ WORD FILE HERE

A genome wide association study identified a SNP on Chromosome 8 that is present in 92% of patients (case) who have high blood pressure and in 6% of controls (people without high blood pressure). The difference in frequency is determined to be statistically significant. What can researchers conclude about this SNP?