Question 1

library(readr)
HR_comma_sep <- read_csv("~/Desktop/Data/HR_comma_sep.csv")
## Rows: 14999 Columns: 10
## ── Column specification ────────────────────────────────────────────────────────
## Delimiter: ","
## chr (2): Department, salary
## dbl (8): satisfaction_level, last_evaluation, number_project, average_montly...
## 
## ℹ Use `spec()` to retrieve the full column specification for this data.
## ℹ Specify the column types or set `show_col_types = FALSE` to quiet this message.

Question 2

satisfaction level: continuous variable, numeric data type number project: discrete variable, data type numeric work_accident: binary variable, numeric data type salary: ordinal variable, character data