Cindy runs a company that designs and prints gift cards for a department store. Quality controls is very important, and Cindy must determine that the cards are being printed properly. For every 6,000 batches of 100 cards that are printed, she examines every 100th batch to make sure the logo is aligned and the magnetic strip works. Identify the population and the sample.
Population is the total group, while the sample is a portion of that total.
In this scenario, the population refers to all the batches of 100 gift cards that are printed by Cindy's company. The population is the entire set of items that Cindy wants to study or analyze.
On the other hand, the sample is the subset of the population that Cindy actually examines. In this case, Cindy examines every 100th batch of 100 cards, which means she is selecting every 100th batch as her sample.
To summarize:
Population: All the batches of 100 gift cards printed by Cindy's company.
Sample: Every 100th batch of 100 gift cards that Cindy examines for quality control.