Performing cluster sampling
Now that you know when to use cluster sampling, it's time to put it into action. In this exercise you'll explore the JobRole column of the attrition dataset. You can think of each job role as a subgroup of the whole population of employees.
attrition_pop is available; dplyr is loaded.
Questo esercizio fa parte del corso
Sampling in R
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
# Get unique JobRole values
job_roles_pop <- ___
# Randomly sample four JobRole values
job_roles_samp <- ___
# See the result
job_roles_samp