A loan-scoring team is turning a raw spreadsheet into a design matrix .
The spreadsheet has rows — one per applicant — and six columns:
| Column | Kind | Detail |
|---|---|---|
age | numeric | years |
annual_income | numeric | rupees |
years_experience | numeric | years |
education_level | categorical | levels |
home_city | categorical | levels |
owns_car | binary | already stored as / |
Three rules are applied while is built:
annual_income, and those rows are deleted before anything else happens.If has rows and columns, it stores individual numbers.
How many individual numbers does the finished design matrix contain?
Give the exact whole number.