Systematic sampling
One sampling method that avoids randomness is called systematic sampling. Here, you pick rows from the population at regular intervals.
For example, if the population dataset had one thousand rows and you wanted a sample size of five, you'd pick rows 200, 400, 600, 800, and 1000.
attrition_pop is available; dplyr and tibble are loaded.
This exercise is part of the course
Sampling in R
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Set the sample size to 200
sample_size <- ___
# Get the population size from attrition_pop
pop_size <- ___
# Calculate the interval
interval <- ___