Exercise

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.

Instructions 1/2

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Set the sample size to 200.
Get the population size from attrition_pop.
Calculate the interval between rows to be sampled.